IBM System/370 145 Reference Summary page 66

Word
Byte 0 Byte 1 Byte 2
MPX
MTO MTI MBI
0 Operational-out 0 Operational-in B
1 Select-out Address-in
u
2 Address-out *2 Status-in signal
s
3 Command-out *3 Service-in signal
4 Service-out 4 Select-in l
5 Interrupt 5 MPX-request in N
6 Suppress-out
6 MPX or Cons Req In
7 MPX check 7 Discon nect·i n
Note: *Bits 2-3
Bits 2 and 3 of MTI are logical functions
of the interface 'service-in' and 'status-in'
lines.
00 =Op-in up
01 = Service-in up
10 =Status-in up
Byte3
MBO
B
u
s
0
u
T
11 = Operational-in down
TERMINATOR PART NUMBERS
System/360 System/370
Bus -
TAG-
5440649 2282675
5440650 2282676
Interface
SOSO
Asm
MPX CHANNEL DATA FLOW
II
4.1