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Hex Dec Type/Val Lng Label (dup) Comments
---- ---- --------- ---- -------------- --------
0000 0 Structure IRBLK INTERRUPTION RESPONSE BLOCK MAPPING
0000 0 Bitstring 12 IRBSCSW (0) EXTENDED STATUS CSW
0000 0 Signed 4 IRBWORD0 (0) IRB WORD 0
0000 0 Bitstring 1 IRBSKEY KEY, EXTENDED STATUS AND DEFERRED
CC
0001 1 Bitstring 1 IRBFPIZN CCW CONTROLS AND INITIAL
RESPONSES
0002 2 Bitstring 1 IRBFCTL FUNCTION CONTROL BYTE
0003 3 Bitstring 1 IRBACTL ACTIVITY CONTROL BYTE
0004 4 Signed 4 IRBCCWA Absolute address of CCW at
interrupt. (+8)
0008 8 Bitstring 4 IRBCSC (0) COMBINED DEVICE STATUS,
SUBCHANNEL STATUS, AND RESIDUAL
COUNT FIELDS
0008 8 Bitstring 1 IRBDVST DEVICE STATUS FLAGS
0009 9 Bitstring 1 IRBSCST SUBCHANNEL STATUS FLAGS
000A 10 Signed 2 IRBCNT UNEXPIRED COUNT IN CCW
000C 12 Signed 4 IRBXSTAT (0) EXTENDED STATUS/TIME WORD
000C 12 Bitstring 1 IRBECF CHANNEL PROGRAM ERROR CHECK FLAGS
000D 13 Bitstring 1 IRBLPUM LAST-PATH-USED MASK
.... 11.1 IRBCPID IRBLPUM IRBCPID *** TEMPORARY
UNTIL CODE CHANGE ***
000E 14 Signed 2 IRBDCTI (0) DEVICE CONNECT TIME INTERVAL
000E 14 Bitstring 1 IRBFVF TERMINATION CODE VALIDATION BITS
000F 15 Bitstring 1 IRBTMSEQ TERMINATION,ALERT AND SEQUENCE
CODES
0010 16 Signed 4 IRBERW (0) Extended Report Word for Format 0
ESW
0010 16 Bitstring 1 IRBERWB0 ERW Byte 0
0011 17 Bitstring 1 IRBERWB1 ERW Byte 1
0012 18 Bitstring 1 * (2) Reserved for future hardware use
0014 20 Signed 4 * RESERVED FOR FUTURE HARDWARE USE
0018 24 Signed 4 * RESERVED FOR FUTURE HARDWARE USE
001C 28 Signed 4 IRB2DCCW Secondary CCW absolute address.
00000020 IRBLEN (*-IRBLK) LENGTH OF THE IRB
WITHOUT XLOGOUT
0020 32 Bitstring 32 IRBXTLOG EXTENDED LOGOUT INFORMATION
00000040 IRBLENG (*-IRBLK) LENGTH OF ARCHITECTED
IRB IN BYTES
0040 64 Bitstring 32 IRBXMEAS (0) Extended Measurement information
0040 64 Signed 4 IRBXCNTI Device-Connect Time
0044 68 Signed 4 IRBXFPTI Function-Pending Time
0048 72 Signed 4 IRBXDDTI Device-Disconnect Time
004C 76 Signed 4 IRBXCQTI Control-Unit-Queuing Time
0050 80 Signed 4 IRBXDATI Device-Active-Only-Time
0054 84 Signed 4 IRBXDBTI Device-Busy Time
0058 88 Signed 4 IRBXIRTI Initial-Command-Response Time
005C 92 Signed 4 * Reserved for future IBM use
00000060 IRBLENGM (*-IRBLK) Len of architected IRB
w/ext meas info
0000000C IRBSIZE (IRBLENGM+7)/8 SIZE IN BYTES FOR
CP ALLOCATION
000A 10 Bitstring 1 IRBFCXST FCX Status
000B 11 Bitstring 1 IRBSCXST Subchannel-Extended Status
0000 0 Bitstring 1 IRBDKEY CHSC Subchannel CRQBK Storage Key
0001 1 Bitstring 1 *
0002 2 Bitstring 2 IRBDFASC (0) FCTL (BIT 17-19) ACTL (BIT 20-26)
0002 2 Bitstring 1 IRBDFCTL
0003 3 Bitstring 1 IRBDACTL
0004 4 Bitstring 4 IRBDCRQ Absolute address of Communication
Request BLK
0008 8 Bitstring 1 *
0009 9 Bitstring 1 IRBDSC CHSC Status Control
000A 10 Bitstring 2 *
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