CS = 1001 (GR
~
GG)
This specifies that the GR register is gated to the selector channel command
register (GG).
CS
=
1010 (GR -. GU)
This specifies that the GR register is gated to the selector channel data ad-
dress register (GU).
CS
=
1011 (GR-'GV)
This specifies that the GR register is gated to the selector channel data ad-
dress register (GV).
CS = 1100 (K -. GH)
This specifies that the CK field values are decoded with gated K to GH to
determine specific selector channel functions.
*
K
*
K
O-Selector channel 1 and 2 machine reset.
I-Diagnostic and tag controls are set.
* K - 2-Tag control is reset.
K 7 -Chain detect is set.
*-Hardware is added for the Rand S diagnostic functions.
CS = 1101 (GI-'GR)
This specifies that the selector channel buss-in-line (GI) is gated tothe GR
register.
CS = 1110
(K~GB)
This specifies that the CK field values are decoded with gated K to GB to
determine specific selector channel functions.
K - O-Program Check
K - 1 and KP
=
O-Selector channel 1
and KP
=
I-Selector channel 2
K 2-0perational-out reset
K - 3-PCI flag is reset
K - 4-Selector channel interrupt is set
K
- 5-Channel control check
K
6-G R to zero is set
K - 7-CPU stored
K 8 and KP O-Count ready is reset
and KP I-Count ready is set
K 9 and KP O-Channel reset
and KP I-Poll control reset and channel reset
K 10 and KP O-Suppress-out is reset
and KP I-Suppress-out is set
K
-
11 and KP O-Poll control is reset
and KP I-Poll control is set
K
-
12-Select-out is reset
K - I3-Channel busy is set
K - 14-Halt 1-0 latch is set
K
-
15-Interface control check
NOTE
KP is K field parity bit.
IBM Confidential
15

CS
==
1111
(K~GA)
This specifies that the CK field values are decoded with gated K to
GA
to
determine specific select channel functions.
K
=
0001-Sets the service-out line on.
K - 0010-Sets the command-out line on.
K - OlOO-Sets the address-out line on.
K - 1000-Sets the buss-out control line on.
NOTE
The CK values will frequently appear as a combination of
these.
Example: K
~
GA
K = 1100 which sets the address-out line, the-
control line, and the selection sequence
latch on. This
turns on the select-out line.
Examples of Microword Format
/'
SYMBOLS ALLOWED
"
./
EXAMPLES
-7'
.........
./
.......
EMIT
K=
- - - - - (P -) BIN, DEC
K
=
0111 PO BIN
ARITHMETIC
CA, ALT. CA, CC, CD, CF., CG, SHJ, RXL.
DH~SC
CV
STORAGE CM, CU, USE GR
IJ~MN
MS
STORE WRAP, RESTORE WRAP,
MISCELLANEOUS
o
~
LINE, 1
~
LINE, 1
~
OE,
CONTROLS
O~MC, O~IPL, O~F, ANSNZ~S2
CS, ALT. CS
ROS WRAP, ASCII, INTST, UV
~
WX,
ADDRESSING
CAnn,~W, K~W, FWX~WX
UV~WX
BRANCHING CH
I
CL RO S3
16
IBM Confidential