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Hex Dec Type/Val Lng Label (dup) Comments
---- ---- --------- ---- -------------- --------
0000 0 Structure ORBLK OPERATION REQUEST BLOCK MAPPING
0000 0 Bitstring 12 ORBORB (0) OPERATION REQUEST BLOCK (ORB)
0000 0 Signed 4 ORBINTP INTERRUPT PARAMETER
0004 4 Signed 4 ORBWORD1 (0) ORB WORD-1
0004 4 Bitstring 1 ORBKEY KEY OF I/O TRANSFER
1111 .... CSWKEY X'F0' CSWKEY KEY OF I/O OPERATION
(0-15)
.... 1... CSWSRENA X'08' CSWSRENA SUSPEND-RESUME
ENABLEMENT Valid in Command Mode
Only ORB only fields
.... .1.. CSWSMCTL X'04' CSWSMCTL Streaming Mode
Cntrl(ORB Word 1,Bit 5)
.... ..1. CSWMODCT X'02' CSWMODCT Modification
Control(ORB Word 1,Bit 6)
.... ...1 CSWSYNCH X'01' CSWSYNCH Synchronize
Control (ORB Word 1,Bit 7) IRB
only fields
.... .1.. CSWESTAT X'04' CSWESTAT 1=EXTENDED STATUS,
0=TIME
.... ..11 CSWDFCC X'03' CSWDFCC DEFERRED CC EXTRACT
MASK
.... .... CSWCC0 X'00' CSWCC0 DEFERRED CC CODE 0
.... ...1 CSWCC1 X'01' CSWCC1 DEFERRED CC CODE 1
.... ..1. CSWCC2 X'02' CSWCC2 DEFERRED CC CODE 2
.... ..11 CSWCC3 X'03' CSWCC3 DEFERRED CC CODE 3
0005 5 Bitstring 1 ORBFPI FORMAT , PREFETCH AND RESPONSE
111. 1... CSWSUMRY X'E8' CSWSUMRY Summary test
field. These bits will appe both
the ORB and IRB
111. 1.11 CSWMESUM X'EB' CSWMESUM z/Arch mode
summary test field. This mask
includes bits that only appear in
the ORB
1... .... CSWFORMT X'80' CSWFORMT FORMAT OF CCW
.1.. .... CSWPREF X'40' CSWPREF UNLIMITED PREFETCH
ALLOWED.
..1. .... CSWRESPN X'20' CSWRESPN INITIAL STATUS
RESPONSE PRESENTED
...1 .... CSWLMODE X'10' CSWLMODE ADDRESS LIMIT IS
IN EFFECT Address Limit Checking
(CSWLMODE) has been deprecated.
.... 1... CSWSUPSI X'08' CSWSUPSI SUPPRESS SUSPENDED
INTERRUPTION Valid in Command
Mode Only
.... .1.. CSWTM X'04' CSWTM ORB "B" bit - Channel
Pgm Type control: When 0, the
channel pgm type is "command
mode" and the channel pgm address
field designates a CCW channel
pgm. When 1, the channel pgm type
is "transport mode" and the
channel pgm address field
designates a TCW channel pgm.
.... ..1. CSWF2IDA X'02' CSWF2IDA ORB "H" bit -
Format-2 IDAW control: when set,
Format-2 (64-bit/31-bit data
address, representing 4K of data)
IDAWs are provided for all
channel commands of the
designated channel program which
have the Indirect Data Addressing
flag set to one.
.... ...1 CSW2KIDA X'01' CSW2KIDA ORB "T" bit - only
meaningful if the Form bit(H) is
set. 64 bit/31 bit data addresses
are used, however data is moved
in 2K blocks per IDAW.
.... .1.. CSWZCC X'04' CSWZCC CONFIRMED ZERO
CONDITION CODE Valid in Command
Mode Only
.... ..1. CSWELOG X'02' CSWELOG EXTENDED I/O LOGOUT
STORED
.... ...1 CSWPNOPR X'01' CSWPNOPR NOT-OPERATION PATH
ENCOUNTERED IRB only definitions
...1 .... CSWTMFC X'10' CSWTMFC IRB "X" bit -
Format control: When 0, the IRB
is a command mode IRB. When 1,
the IRB is a transport mode IRB
and CSWTMFMT designates the IRB
format.
.... 1... CSWINTC X'08' CSWINTC IRB "Q" bit -
Interrogate complete Valid in
Transport Mode Only
111. .... CSWTMFMT X'E0' CSWTMFMT IRB Format mask
for CSWFPIZN Valid in Transport
Mode Only
0006 6 Bitstring 1 ORBLPM LOGICAL PATH MASK
0007 7 Bitstring 1 ORBBYT7 ORB BYTE 7
0008 8 Address 4 ORBCPA The location of the first CCW in
absolute main storage.
0000000C ORBSMLN (*-ORBLK) Standard ORB size
000C 12 Bitstring 20 ORBXWRDS (0) Extended portion of ORB: words
3-7
000C 12 Signed 4 ORBWORD3 (0) ORB word three
000C 12 Bitstring 1 ORBPRTY I/O Priority for channel
subsystem
000D 13 Bitstring 1 ORBW3B1 Word 3 byte 1
000E 14 Bitstring 1 ORBW3B2 Word 3 byte 2
000F 15 Bitstring 1 ORBW3B3 Word 3 byte 3
0010 16 Signed 4 ORBWORD4 Reserved for hardware use
0014 20 Signed 4 ORBWORD5 Reserved for hardware use
0018 24 Signed 4 ORBWORD6 Reserved for hardware use
001C 28 Signed 4 ORBWORD7 Reserved for hardware use
00000002 ORBSMSZ (ORBSMLN+7)/8 Standard ORB in
Double Words
00000020 ORBBLEN (*-ORBLK) Expanded ORB Byte size
00000004 ORBSIZE (ORBBLEN+7)/8 Expanded ORB in
Double Words
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