Offset | Type/Value | Len | Name (Dim) | Description |
---|---|---|---|---|
DATA CONTROL BLOCK DEFINITION |
||||
X'80' | DCBBIT0 | "128" | ||
X'40' | DCBBIT1 | "64" | ||
X'20' | DCBBIT2 | "32" | ||
X'10' | DCBBIT3 | "16" | ||
X'8' | DCBBIT4 | "8" | ||
X'4' | DCBBIT5 | "4" | ||
X'2' | DCBBIT6 | "2" | ||
X'1' | DCBBIT7 | "1" | ||
DEVICE INTERFACES |
||||
16 (10) | BITSTRING | 1 | DCBBQFLG | – WTTA FLAG BYTE |
.1. . . . . . | DCBBQWRU | "DCBBIT1"– WRU FEATURE IS TO BE USED | ||
. .1. . . . . | DCBBQIAM | "DCBBIT2"– IAM FEATURE IS TO BE USED | ||
. . .1 . . . . | DCBBQWRS | "DCBBIT3"– WRU FEATURE TO BE USED IN SEND HEADER SUBGROUP | ||
. . . . 1. . . | DCBBQWRE | "DCBBIT4"– WRU FEATURE TO BE USED IN END SEND SUBGROUP | ||
17 (11) | CHARACTER | 1 | DCBWTEOM | – EOM CHARACTER |
18 (12) | CHARACTER | 1 | DCBWTEOT | – EOT CHARACTER |
19 (13) | SIGNED | 1 | DCBWTPAD | – NUMBER OF PAD (LTRS) CHARACTERS REQUIRED FOR MOTOR-ON DELAY |
BTAM LINE GROUP INTERFACE |
||||
20 (14) | ADDRESS | 4 | DCBBUFCB (0) | – ADDRESS OF BUFFER POOL CONTROL BLOCK |
20 (14) | SIGNED | 1 | DCBBUFNO | – NUMBER OF BUFFERS OBTAINED BY OPEN |
21 (15) | ADDRESS | 3 | DCBBUFCA | – ADDRESS OF BUFFER POOL CONTROL BLOCK |
24 (18) | SIGNED | 2 | DCBBUFL | – BUFFER LENGTH |
26 (1A) | BITSTRING | 2 | DCBDSORG (0) | – DATA SET ORGANIZATION BEING USED |
26 (1A) | BITSTRING | 1 | DCBDSRG1 | – FIRST BYTE OF DCBDSORG |
1. . . . . . . | DCBDSGIS | "DCBBIT0"– IS – INDEXED SEQUENTIAL ORGANIZATION | ||
.1. . . . . . | DCBDSGPS | "DCBBIT1"– PS – PHYSICAL SEQUENTIAL ORGANIZATION | ||
. .1. . . . . | DCBDSGDA | "DCBBIT2"– DA – DIRECT ORGANIZATION | ||
. . .1 . . . . | DCBDSGCX | "DCBBIT3"– CX – BTAM OR QTAM LINE GROUP | ||
. . . . . .1. | DCBDSGPO | "DCBBIT6"– PO – PARTITIONED ORGANIZATION | ||
. . . . . . .1 | DCBDSGU | "DCBBIT7"– U – UNMOVABLE, THE DATA CONTAINS LOCATION DEPENDENT INFORMATION | ||
27 (1B) | BITSTRING | 1 | DCBDSRG2 | – SECOND BYTE OF DCBDSORG |
1 | 1. . . . . . . | DCBDSGGS | "DCBBIT0"– GS – GRAPHICS ORGANIZATION | |
.1. . . . . . | DCBDSGTX | RESERVED | ||
. .1. . . . . | DCBDSGTQ | RESERVED | ||
. . . . 1. . . | DCBACBM | "DCBBIT4"– ACCESS METHOD CONTROL BLOCK | ||
. . . . .1. . | DCBDSGTR | RESERVED | ||
28 (1C) | ADDRESS | 4 | DCBIOBAD (0) | – BASE FOR ADDRESSING IOB'S (BASE = ADDRESS OF FIRST IOB MINUS LENGTH OF AN IOB) |
28 (1C) | SIGNED | 1 | DCBDEVTP | – INDEX TO DEVICE ENTRY IN THE DEVICE I/O DIRECTORY |
29 (1D) | ADDRESS | 3 | DCBIOBAA | –- SAME AS DCBIOBAD ABOVE |
32 (20) | BITSTRING | 1 | DCBHIARC (0) | – HIERARCHY FLAG BITS |
32 (20) | BITSTRING | 1 | DCBBFTEK | – BUFFERING TECHNIQUE FLAG BITS |
1. . . . . . . | DCBH1 | "DCBBIT0"– HIERARCHY 1 MAIN STORAGE – BIT 5 IS ZERO | ||
.111 . . . . | DCBBFT | "DCBBIT1+DCBBIT2+DCBBIT3" BUFFERING TECHNIQUE | ||
.11. . . . . | DCBBFTA | "DCBBIT1+DCBBIT2"– QSAM LOCATE MODE PROCESSING OF SPANNED RECORDS – OPEN IS TO CONSTRUCT A RECORD AREA IF IT AUTOMATICALLY CONSTRUCTS BUFFERS | ||
. .1. . . . . | DCBBFTR | "DCBBIT2"– FOR BSAM CREATE BDAM PROCESSING OF UNBLOCKED SPANNED RECORDS – SOFTWARE TRACK OVERFLOW. FOR BSAM INPUT PROCESSING OF UNBLOCKED SPANNED RECORDS | ||
.1. . . . . . | DCBBFTS | "DCBBIT1"– SIMPLE BUFFERING – BIT 3 IS ZERO | ||
. .1. . . . . | DCBBFTKR | "DCBBIT2"– UNBLOCKED SPANNED RECORDS – SOFTWARE TRACK OVERFLOW (BDAM) | ||
. . .1 . . . . | DCBBFTE | "DCBBIT3"– EXCHANGE BUFFERING – BIT 1 IS ZERO | ||
. . . . 1. . . | DCBBFTKD | "DCBBIT4"– DYNAMIC BUFFERING (BTAM) | ||
. . . . 1. . . | DCBBFTK | "DCBBIT4"– LRECL IN 'K' UNITS FOR XLRI | ||
.11. 1. . . | DCBBXLRI | "DCBBIT1+DCBBIT2+DCBBIT4"– EXTENDED LOGICAL RECORD INTERFACE MODE FOR SPANNED RECORDS GREATER THAN 32K – ALL RECORDS TRANSFERRED TO OR FROM THE RECORD AREA. | ||
. . . . .1. . | DCBH0 | "DCBBIT5"– HIERARCHY 0 MAIN STORAGE – BIT 0 IS ZERO | ||
. . . . . .11 | DCBBFA | "DCBBIT6+DCBBIT7"– BUFFER ALIGNMENT | ||
. . . . . .1. | DCBBFAD | "DCBBIT6"– DOUBLEWORD BOUNDARY | ||
. . . . . . .1 | DCBBFAF1 | "DCBBIT7"– FULLWORD NOT A DOUBLEWORD BOUNDARY, CODED IN DCB MACRO INSTRUCTION | ||
. . . . . .11 | DCBBFAF2 | "DCBBIT6+DCBBIT7"– FULLWORD NOT A DOUBLEWORD BOUNDARY, CODED IN DCB MACRO INSTRUCTION | ||
33 (21) | BITSTRING | 1 | DCBERROP | – ERROR RECOVERY PROCEDURE BITS |
34 (22) | SIGNED | 1 | DCBBUFCT | – MAX NUMBER OF READ BUFFERS |
35 (23) | BITSTRING | 1 | – RESERVED | |
36 (24) | ADDRESS | 4 | DCBEXLST (0) | – ADDRESS OF USER–PROVIDED EXIT LIST |
36 (24) | SIGNED | 1 | DCBEIOBX | – SIZE OF IOB |
37 (25) | ADDRESS | 3 | DCBEXLSA | – ADDRESS OF USER–PROVIDED EXIT LIST |
33 (21) | BITSTRING | 1 | DCBERROP | – ERROR RECOVERY PROCEDURE BITS |
. . .1 . . . . | DCBERPT | "DCBBIT3"– ON–LINE TEST FACILITIES TO BE USED | ||
. . . . 1. . . | DCBERPC | "DCBBIT4"– THRESHOLD AND CUMULATIVE ERROR COUNTS TO BE MAINTAINED | ||
. . . . .1. . | DCBERPW | "DCBBIT5"– TEXT-WRITE ERRORS TO BE RETRIED | ||
. . . . . .1. | DCBERPR | "DCBBIT6"– TEXT–READ ERRORS TO BE RETRIED | ||
. . . . . . .1 | DCBERPN | "DCBBIT7"– IF ZERO, BASIC ERP TO BE FOLLOWED --- IF ONE, NO ERP TO BE FOLLOWED | ||
34 (22) | SIGNED | 1 | DCBBUFCT | – CONTAINS MAXIMUM NUMBER OF BUFFERS TO BE OBTAINED BY BTAM FOR READ OPERATION (DYNAMIC BUFFERING ONLY) |
QTAM LINE GROUP INTERFACE |
||||
20 (14) | ADDRESS | 4 | DCBCLPS (0) | – ADDRESS OF LINE PROCEDURE SPECIFICATION ROUTINE |
20 (14) | SIGNED | 1 | DCBBUFRQ | – NUMBER OF BUFFERS REQUESTED FOR A READ OR WRITE OPERATION |
21 (15) | ADDRESS | 3 | DCBCLPSA | – SAME AS DCBCLPS ABOVE |
24 (18) | SIGNED | 1 | DCBINTVL | – NUMBER OF SECONDS OF INTENTIONAL DELAY BETWEEN PASSES THROUGH A POLLING LIST FOR NONSWITCHED LINES |
25 (19) | BITSTRING | 1 | – RESERVED | |
26 (1A) | BITSTRING | 2 | DCBDSORG(0) | – DATA SET ORGANIZATION |
26 (1A) | BITSTRING | 1 | DCBDSRG1 | – FIRST BYTE OF DCBDSORG |
27 (1B) | BITSTRING | 1 | DCBDSRG2 | – SECOND BYTE OF DCBDSORG |
28 (1C) | ADDRESS | 1 | DCBDEVTP | – DEVICE TYPE POINTER |
29 (1D) | ADDRESS | 3 | DCBIOBAA | – ADDRESS OF FIRST IOB |
32 (20) | ADDRESS | 4 | DCBLCBAD (0) | –BASE FOR ADDRESSING LCB'S (BASE = ADDRESS OF FIRST LCB MINUS LENGTH OF ONE LCB) |
32 (20) | BITSTRING | 1 | DCBCPRI | – COMMUNICATION PRIORITY BITS |
. . . . .1. . | DCBCPR | "DCBBIT5"– RECEIVING HAS PRIORITY | ||
. . . . . .1. | DCBCPE | "DCBBIT6"– RECEIVING AND SENDING HAVE EQUAL PRIORITY | ||
. . . . . . .1 | DCBCPS | "DCBBIT7"– SENDING HAS PRIORITY | ||
33 (21) | 2.ADDRESS | 3 | DCBLCBA | – SAME AS DCBLCBAD ABOVE |
36 (24) | SIGNED | 1 | DCBEIOBX | – EXTENDED IOB INDEX. SIZE OF LCB. |
37 (25) | ADDRESS | 3 | DCBEXLSA | – ADDRESS OF EXIT LIST |
FOUNDATION BEFORE OPEN |
||||
40 (28) | CHARACTER | 8 | DCBDDNAM | – NAME ON THE DD STATEMENT WHICH DEFINES THE DATA SET ASSOCIATED WITH THIS DCB |
48 (30) | BITSTRING | 1 | DCBOFLGS | – FLAGS USED BY OPEN ROUTINE |
1. . . . . . . | DCBOFLWR | "DCBBIT0"– IF ZERO, LAST I/O OPERATION WAS READ OR POINT. IF ONE, LAST I/O OPERATION WAS WRITE. | ||
1. . . . . . . | DCBOFIOD | "DCBBIT0"– DATA SET IS BEING OPENED FOR INPUT OR OUTPUT (BDAM) | ||
.1. . . . . . | DCBOFLRB | "DCBBIT1"– LAST I/O OPERATION WAS IN READ BACKWARD MODE | ||
. .1. . . . . | DCBOFEOV | DCBBIT2"– 1 BY EOV WHEN IT CALLS CLOSE ROUTINE FOR CONCATENATION OF DATA SETS WITH UNLIKE ATTRIBUTES | ||
. . .1 . . . . | DCBOFOPN | "DCBBIT3"– AN OPEN HAS BEEN SUCCESSFULLY COMPLETED | ||
. . . . 1. . . | DCBOFPPC | "DCBBIT4"– SET TO 1 BY PROBLEM PROGRAM TO INDICATE A CONCATENATION OF UNLIKE ATTRIBUTES | ||
. . . . .1. . | DCBOFTM | "DCBBIT5"– TAPE MARK HAS BEEN READ | ||
. . . . . .1. | DCBOFUEX | "DCBBIT6"– SET TO 0 BY AN I/O SUPPORT FUNCTION WHEN THAT FUNCTION TAKES A USER EXIT. SET TO 1 ON RETURN FROM USER EXIT TO THE I/O SUPPORT FUNCTION WHICH TOOK THE EXIT. | ||
. . . . . . .1 | DCBOFIOF | "DCBBIT7"– SET TO 1 BY AN I/O SUPPORT FUNCTION IF DCB IS TO BE PROCESSED BY THAT FUNCTION | ||
49 (31) | BITSTRING | 1 | DCBIFLG | – FLAGS USED BY IOS IN COMMUNICATING ERROR CONDITIONS AND IN DETERMINING CORRECTIVE PROCEDURES |
11. . . . . . | DCBIBEC | "DCBBIT0+DCBBIT1"– ERROR CORRECTION INDICATOR | ||
. . . . . . . . | DCBIFNEP | "X'00'"– NOT IN ERROR PROCEDURE | ||
.1. . . . . . | DCBEX | "DCBBIT1"– ERROR CORRECTION OR IOS PAGE FIX IN PROCESS | ||
11. . . . . . | DCBIFPEC | "DCBBIT0+DCBBIT1"– PERMANENT ERROR CORRECTION | ||
1 | . .11 . . . . | DCBIBPCT | "DCBBIT2+DCBBIT3"– PRINTER CARRIAGE TAPE PUNCH INDICATOR | |
. .1. . . . . | DCBIFC9 | "DCBBIT2"– CHANNEL 9 PRINTER CARRIAGE TAPE PUNCH SENSED | ||
. . .1 . . . . | DCBIFC12 | "DCBBIT3"– CHANNEL 12 PRINTER CARRIAGE TAPE PUNCH SENSED | ||
. . . . 11. . | DCBIBIOE | "DCBBIT4+DCBBIT5"– IOS ERROR ROUTINE USE INDICATOR | ||
. . . . . . . . | DCBIFER | "X'00'"– ALWAYS USE I/O SUPERVISOR ERROR ROUTINE | ||
. . . . .1. . | DCBIFNE1 | "DCBBIT5"– NEVER USE I/O SUPERVISOR ERROR ROUTINE | ||
. . . . .1. . | DCBIFTIM | "DCBBIT5"– TEST IOS MASK (IMSK) FOR ERROR PROCEDURE (BTAM) | ||
. . . . 1. . . | DCBIFNE2 | "DCBBIT4"– NEVER USE I/O SUPERVISOR ERROR ROUTINE | ||
. . . . 11. . | DCBIFNE3 | "DCBBIT4+DCBBIT5"– NEVER USE I/O SUPERVISOR ERROR ROUTINE | ||
50 (32) | BITSTRING | 2 | DCBMACR (0) | – MACRO INSTRUCTION REFERENCE |
50 (32) | BITSTRING | 1 | DCBMACR1 | – FIRST BYTE OF DCBMACR |
1. . . . . . . | DCBMRECP | "DCBBIT0"– EXECUTE CHANNEL PROGRAM (EXCP) --- ALWAYS ZERO (BSAM, QSAM, BPAM, BISAM, QISAM, BDAM) --- RESERVED (QTAM, BTAM) | ||
.1. . . . . . | DCBMRFE | "DCBBIT1"– FOUNDATION EXTENSION IS PRESENT (EXCP) | ||
.1. . . . . . | DCBMRGET | "DCBBIT1"– GET (QSAM, QISAM) | ||
.1. . . . . . | DCBMRPTQ | "DCBBIT1"– PUT FOR MESSAGE GROUP (QTAM) --- ALWAYS ZERO (BSAM, BPAM, BISAM, BDAM) --- RESERVED (BTAM) | ||
. .1. . . . . | DCBMRAPG | "DCBBIT2"– APPENDAGES ARE REQUIRED (EXCP) | ||
. .1. . . . . | DCBMRRD | "DCBBIT2"– READ (BSAM, BPAM, BISAM, BDAM, BTAM) | ||
. .1. . . . . | DCBMRWRQ | "DCBBIT2"– WRITE FOR LINE GROUP (QTAM) --- ALWAYS ZERO (QSAM, QISAM) | ||
. . .1 . . . . | DCBMRCI | "DCBBIT3"– COMMON INTERFACE (EXCP) | ||
. . .1 . . . . | DCBMRMVG | "DCBBIT3"– MOVE MODE OF GET (QSAM, QISAM) | ||
. . .1 . . . . | DCBMRRDK | "DCBBIT3"– KEY SEGMENT WITH READ (BDAM) --- ALWAYS ZERO (BISAM) --- RESERVED (BSAM, BPAM, QTAM, BTAM) | ||
. . . . 1. . . | DCBMRLCG | "DCBBIT4"– LOCATE MODE OF GET (QSAM, QISAM) | ||
. . . . 1. . . | DCBMRRDI | "DCBBIT4"– ID ARGUMENT WITH READ (BDAM) --- ALWAYS ZERO (BISAM) --- RESERVED (EXCP, BSAM, BPAM, QTAM, BTAM) | ||
. . . . .1. . | DCBMRABC | "DCBBIT5"– USER'S PROGRAM MAINTAINS ACCURATE BLOCK COUNT (EXCP) | ||
. . . . .1. . | DCBMRPT1 | "DCBBIT5"– POINT (WHICH IMPLIES NOTE) (BSAM, BPAM) | ||
. . . . .1. . | DCBMRSBG | "DCBBIT5"– SUBSTITUTE MODE OF GET (QSAM) | ||
. . . . .1. . | DCBMRDBF | "DCBBIT5"– DYNAMIC BUFFERING (BISAM, BDAM) --- ALWAYS ZERO (QISAM) --- RESERVED (QTAM, BTAM) | ||
. . . . . .1. | DCBPGFXA | "DCBBIT6"– PAGE FIX APPENDAGE IS SPECIFIED (EXCP) | ||
. . . . . .1. | DCBMRCRL | "DCBBIT6"– CNTRL (BSAM, QSAM) | ||
. . . . . .1. | DCBMRCHK | "DCBBIT6"– CHECK (BISAM) | ||
. . . . . .1. | DCBMRRDX | "DCBBIT6"– READ EXCLUSIVE (BDAM) --- RESERVED (BPAM, QISAM, QTAM, BTAM) | ||
. . . . . . .1 | DCBMRDMG | "DCBBIT7"– DATA MODE OF GET (QSAM) | ||
. . . . . . .1 | DCBMRCK | "DCBBIT7"– CHECK (BDAM) --- RESERVED (EXCP, BSAM, BPAM, BISAM, QISAM, QTAM, BTAM) | ||
51 (33) | BITSTRING | 1 | DCBMACR2 | – SECOND BYTE OF DCBMACR |
1. . . . . . . | DCBMRSTL | "DCBBIT0"– SETL (QISAM) --- ALWAYS ZERO (BSAM, QSAM, BPAM, BISAM, BDAM) --- RESERVED (EXCP, QTAM, BTAM) | ||
.1. . . . . . | DCBMRPUT | "DCBBIT1"– PUT (QSAM) - PUT OR PUTX (QISAM) | ||
.1. . . . . . | DCBMRGTQ | DCBBIT1"– GET FOR MESSAGE GROUP (QTAM) --- ALWAYS ZERO (BSAM, BPAM, BISAM, BDAM) --- RESERVED (EXCP, BTAM) | ||
. .1. . . . . | DCBMRWRT | "DCBBIT2"– WRITE (BSAM, BPAM, BISAM, BDAM, BTAM) | ||
. .1. . . . . | DCBMRRDQ | "DCBBIT2"– READ FOR LINE GROUP (QTAM) --- ALWAYS ZERO (QSAM, QISAM) --- RESERVED (EXCP) | ||
. . .1 . . . . | DCBMRMVP | "DCBBIT3"– MOVE MODE OF PUT (QSAM, QISAM) | ||
. . .1 . . . . | DCBMRWRK | "DCBBIT3"– KEY SEGMENT WITH WRITE (BDAM) --- ALWAYS ZERO (BISAM) --- RESERVED (EXCP, BSAM, BPAM, QTAM, BTAM) | ||
. . . . 1. . . | DCBMR5WD | "DCBBIT4"– FIVE-WORD DEVICE INTERFACE (EXCP) | ||
. . . . 1. . . | DCBMRLDM | "DCBBIT4"– LOAD MODE BSAM (CREATE BDAM DATA SET) (BSAM) | ||
. . . . 1. . . | DCBMRLCP | "DCBBIT4"– LOCATE MODE OF PUT (QSAM, QISAM) | ||
. . . . 1. . . | DCBMRIDW | "DCBBIT4"– ID ARGUMENT WITH WRITE (BDAM) --- ALWAYS ZERO (BISAM) --- RESERVED (BPAM, QTAM, BTAM) | ||
. . . . .1. . | DCBMR4WD | "DCBBIT5"– FOUR-WORD DEVICE INTERFACE (EXCP) | ||
. . . . .1. . | DCBMRPT2 | "DCBBIT5"– POINT (WHICH IMPLIES NOTE) (BSAM, BPAM) | ||
. . . . .1. . | DCBMRTMD | "DCBBIT5"– SUBSTITUTE MODE (QSAM) | ||
. . . . .1. . | DCBMRUIP | "DCBBIT5"– UPDATE IN PLACE (PUTX) (QISAM) --- ALWAYS ZERO (BISAM) --- RESERVED (BDAM, QTAM, BTAM) | ||
. . . . . .1. | DCBMR3WD | "DCBBIT6"– THREE–WORD DEVICE INTERFACE (EXCP) | ||
. . . . . .1. | DCBMRCTL | "DCBBIT6"– CNTRL (BSAM, QSAM) | ||
. . . . . .1. | DCBMRSTK | "DCBBIT6"– SETL BY KEY (QISAM) | ||
. . . . . .1. | DCBMRAWR | "DCBBIT6"– ADD TYPE OF WRITE (BDAM) --- ALWAYS ZERO (BISAM) --- RESERVED (BPAM, QTAM, BTAM) | ||
. . . . . . .1 | DCBMR1WD | "DCBBIT7"– ONE–WORD DEVICE INTERFACE (EXCP) | ||
. . . . . . .1 | DCBMRSWA | "DCBBIT7"– USER'S PROGRAM HAS PROVIDED A SEGMENT WORK AREA POOL (BSAM CREATE BDAM, BDAM) | ||
. . . . . . .1 | DCBMRDMD | "DCBBIT7"– DATA MODE (QSAM) | ||
. . . . . . .1 | DCBMRSTI | "DCBBIT7"– SETL BY ID (QISAM) --- ALWAYS ZERO (BISAM) --- RESERVED (BPAM, QTAM, BTAM) | ||
FOUNDATION AFTER OPEN |
||||
40 (28) | ADDRESS | 2 | DCBTIOT | OFFSET FROM TIOT ORIGIN TO TIOELNGH FIELD IN TIOT ENTRY FOR DD STATEMENT ASSOCIATED WITH THIS DCB |
42 (2A) | BITSTRING | 2 | DCBMACRF (0) | – SAME AS DCBMACR BEFORE OPEN |
42 (2A) | BITSTRING | 1 | DCBMACF1 | – FIRST BYTE OF DCBMACRF |
43 (2B) | BITSTRING | 1 | DCBMACF2 | – SECOND BYTE OF DCBMACRF |
44 (2C) | ADDRESS | 4 | DCBDEBAD (0) | – ADDRESS OF ASSOCIATED DEB |
44 (2C) | BITSTRING | 1 | DCBIFLGS | – SAME AS DCBIFLG BEFORE OPEN |
11. . . . . . | DCBIFEC | "DCBBIT0+DCBBIT1"– CORRECTION INDICATOR | ||
. .11 . . . . | DCBIFPCT | "DCBBIT2+DCBBIT3"– PRINTER CARRIAGE TAPE PUNCH INDICATOR | ||
. . . . 11. . | DCBIFIOE | "DCBBIT4+DCBBIT5"– IOS ERROR ROUTINE USE INDICATOR | ||
. . . . . .1. | DCBIFLDT | "DCBBIT6"– POSSIBLE LOST DATA CONDITION SUCH AS FOR A PRINTER | ||
45 (2D) | ADDRESS | 3 | DCBDEBA | – ADDRESS OF ASSOCIATED DEB |
48 (30) | ADDRESS | 4 | DCBREAD (0) | – ADDRESS OF READ MODULE |
48 (30) | ADDRESS | 4 | DCBWRITE (0) | – ADDRESS OF WRITE MODULE |
48 (30) | BITSTRING | 1 | DCBOFLG | SAME AS DCBOFLGS BEFORE OPEN |
49 (31) | ADDRESS | 3 | DCBREADA (0) | ADDRESS OF READ MODULE |
49 (31) | ADDRESS | 3 | DCBWRITA | ADDRESS OF WRITE MODULE |
48 (30) | ADDRESS | 4 | DCBGET (0) | – ADDRESS OF GET MODULE |
48 (30) | ADDRESS | 4 | DCBPUT (0) | – ADDRESS OF PUT MODULE |
48 (30) | BITSTRING | 1 | DCBOFLG1 | SAME AS DCBOFLGS BEFORE OPEN |
49 (31) | ADDRESS | 3 | DCBGETA (0) | ADDRESS OF GET MODULE |
49 (31) | ADDRESS | 3 | DCBPUTA | ADDRESS OF PUT MODULE |
QTAM INTERFACE |
||||
52 (34) | CHARACTER | 4 | DCBKSTAT (0) | – FOUR THRESHOLD VALUES FOR ERROR COUNTS |
52 (34) | SIGNED | 1 | DCBKSTA1 | –THRESHOLD VALUE FOR NUMBER OF TRANSMISSIONS |
53 (35) | SIGNED | 1 | DCBKSTA2 | – THRESHOLD VALUE FOR NUMBER OF DATA CHECKS |
54 (36) | SIGNED | 1 | DCBKSTA3 | – THRESHOLD VALUE FOR NUMBER OF INTERVENTIONS REQUIRED |
55 (37) | SIGNED | 1 | DCBKSTA4 | –OLD VALUE FOR NUMBER OF TIMEOUTS |
QTAM POLLING LIST ORIGIN |
||||
56 (38) | ADDRESS | 4 | DCBCPOLL (0) | – A 4–BYTE FIELD FOR EACH POLLING LIST |
56 (38) | BITSTRING | 1 | DCBPLBYT | –ADAPTER TYPE |
1 | . . . . 1. . . | DCBCPWTT | "DCBBIT4"– WTTA | |
57 (39) | ADDRESS | 3 | DCBCPOLA | – ADDRESS OF THE POLLING LIST |
BTAM INTERFACE |
||||
52 (34) | ADDRESS | 4 | DCBLERB (0) | – ADDRESS OF LINE ERROR BLOCK |
52 (34) | BITSTRING | 1 | DCBRDYI (0) | – READYQ INDICATORS |
. . . . .1. . | DCBRDYPO | "DCBBIT5"– APPLICATION REQUESTS NOTIFICATION OF POWER®–ON THAT IS AFTER INITIAL READY | ||
. . . . . .1. | DCBRDYIQ | "DCBBIT6"– ADDRESS IS READYQ AND NOT LERB | ||
. . . . . . .1 | DCBRDYIZ | "DCBBIT7"– READYQ SPECIFIED, BUT ADDRESS WAS 0, SO USING BTAM READYQ ROUTINE | ||
52 (34) | ADDRESS | 4 | DCBRDYQ | – ADDRESS OF USER/BTAM ROUTINE TO PROCESS LOCAL 3270 DEVICE READY INTERRUPTS |
BSC INTERFACE |
||||
56 (38) | BITSTRING | 1 | DCBXMODE | – MODE OF TRANSMISSION FOR BINARY SYNCHRONOUS COMMUNICATION (BSC) |
.1. . . . . . | DCBXMIBC | "DCBBIT1"– INTERMEDIATE BLOCK CHECKING IS TO BE PERFORMED | ||
. .1. . . . . | DCBXMDA1 | "DCBBIT2"– TRANSMISSION IS THROUGH A 2701 DATA ADAPTER UNIT DUAL COMMUNICATION INTERFACE B | ||
. . . . 1. . . | DCBXMDA2 | "DCBBIT4"– TRANSMISSION IS IN CODE B FOR A 2701 DATA ADAPTER UNIT DUAL CODE FEATURE | ||
57 (39) | BITSTRING | 1 | DCBXCODE | – BSC CONTROL STATION FLAG AND TRANSMISSION CODE |
1. . . . . . . | DCBXCCSF | "DCBBIT0"– BSC CONTROL STATION FLAG --- IF ZERO, THIS IS THE CONTROL STATION. IF ONE, THIS IS THE REMOTE STATION. | ||
1 | .1. . . . . . | DCBXCPTP | "DCBBIT1"– IF PTOP IS SPECIFIED IN SYSGEN PROCEDURE – SCHEDULE AN ASYNCHRONOUS EXIT TO INTERFACE RESOLUTION ROUTINE | |
. .1. . . . . | DCBXCTR1 | "DCBBIT2"– 6–BIT TRANSCODE IS BEING USED (BIT 4 IS ALSO ON) | ||
. . .1 . . . . | DCBXCAS1 | "DCBBIT3"– USASCII TRANSMISSION CODE IS BEING USED (BIT 5 IS ALSO ON) | ||
. . . . 11. . | DCBXCEBC | "DCBBIT4+DCBBIT5"– IF BOTH BITS ARE ZERO, EBCDIC TRANSMISSION CODE IS BEING USED. | ||
. . . . 1. . . | DCBXCTR2 | "DCBBIT4"– 6–BIT TRANSCODE IS BEING USED (BIT 2 IS ALSO ON) | ||
. . . . .1. . | DCBXCAS2 | "DCBBIT5"– USASCII TRANSMISSION CODE IS BEING USED (BIT 3 IS ALSO ON) | ||
58 (3A) | CHARACTER | 1 | DCBBSRSV | – DLE CONTROL CHARACTER |
59 (3B) | BITSTRING | 1 | DCBBSWBT | – RESERVED |
60 (3C) | ADDRESS | 4 | DCBIRRAD (0) | – BEFORE OPEN – IF PTOP IS SPECIFIED IN THE SYSGEN PROCEDURE, ADDRESS OF INTERFACE RESOLUTION ROUTINE. AFTER OPEN, THE FOLLOWING 4 CHARACTERS OCCUPY THIS SPACE. |
60 (3C) | CHARACTER | 1 | DCBBSTSX | – DLE CONTROL CHARACTER |
61 (3D) | CHARACTER | 1 | DCBBSSTX | – STX CONTROL CHARACTER |
62 (3E) | CHARACTER | 1 | DCBBSTEX | – DLE CONTROL CHARACTER |
63 (3F) | CHARACTER | 1 | DCBBSETX | – ETX CONTROL CHARACTER |
64 (40) | CHARACTER | 2 | DCBBSAK0 | – ACK–0 CONTROL CHARACTER |
66 (42) | CHARACTER | 2 | DCBBSAK1 | – ACK–1 CONTROL CHARACTER |
68 (44) | CHARACTER | 1 | DCBBSENQ | – ENQ CONTROL CHARACTER |
69 (45) | CHARACTER | 1 | DCBBSNAK | – NAK CONTROL CHARACTER |
70 (46) | CHARACTER | 1 | DCBBSETB | – ETB CONTROL CHARACTER |
71 (47) | CHARACTER | 1 | DCBBSDLE | – DLE CONTROL CHARACTER |
72 (48) | CHARACTER | 1 | DCBBSEOT | –NTROL CHARACTER |
73 (49) | CHARACTER | 3 | DCBBSSYN | – SYN, SYN, SYN CONTROL CHARACTERS |
76 (4C) | CHARACTER | 2 | DCBBSONL | –SOH % CONTROL CHARACTERS |
78 (4E) | CHARACTER | 2 | DCBBSSAK | – WACK CONTROL CHARACTERS |
80 (50) | CHARACTER | 2 | DCBBSRVI | – DLE @ CONTROL CHARACTERS |
82 (52) | BITSTRING | 18 | – RESERVED |