IBM 1 Series - Page 187

cycle indicator
byte 2-9
input 2-9
cycle-steal
request in 2-12
service
sequence description 2-24
sequences (use of data bus) 2-9
subset of I/O channel signal lines 2-6
cycle-steal/IPL subset (I/O channel signal lines) 2-6
data
bus 2-7
bus in (DPC adapter lines) 6-6
bus out (DPC adapter lines) 6-5
strobe 2-10
strobe, tags and 2-40
data transmission (TTY adapter) 4-11
design considerations
device reset 2-46
DPC adapter feature 6-22
integrated digital I/O feature 5-18
operational sequences 2-39
processor-initiated IPL 2-46
receiver conditioning 2-46
tags and data strobe 2-40
teletypewriter adapter feature 4-30
timer feature 3-12
device
address (DPC adapter lines) 6-4
attachments, sequence of plugging 2-73
byte-oriented 2-7
device reset design considerations 2-46
DI (see digital input)
diagnostic mode
digital input 5-6
digital output 5-4
modifier 6-7
digital
input
electrical characteristics 5-7
external sync 5-7
introduction 5-1]
operation 5-6
output
electrical characteristics 5-8
external sync 5-5
introduction 5-4
operation 5-4
specifications, external sync input 5-7
specifications, ready output 5-9
digital input (DI) 5-1
characteristics 5-7
external sync line 5-3
general 1-3
operation modes
diagnostic 5-7
external sync 5-6
non-interrupting 5-6
process interrupt 5-6
digital output (DO) 5-4
characteristics 5-8
external sync line 5-4
general 1-3
X-2. GA34-0033
digital output (DO) (continued)
operation modes
diagnostic 5-5
external sync 5-5
non-interrupting 5-4
direct program control (DPC) (see DPC adapter feature)
DO (see digital output)
DPC (see DPC adapter feature)
DPC adapter feature 1-3
application considerations 6-22
attachments 6-2
card and cable connector 6-13
command bus
address bus bit 16 2-7
address bus bitsO—-15 2-7
data strobe 2-10
status bus 2-10
description 6-1
electrical characteristics 6-11
drivers 6-11
receivers 6-12
interrupt vectoring 6-1
operational characteristics 6-8
input sequence 6-9
input-service sequence 6-10
output sequence 6-8
operations (I/O channel) 2-1
physical characteristics 6-13
CAP connections 6-17
jumper selections 6-21
signal pin assignments 6-13
read sequences (use of data bus) 2-7
sequence description 2-19
sequences 2-19
read 2-7
write 2-7
signal lines 6-3
condition code in 6-6
data busin 6-6
data bus out 6-5
device address 6-4
diagnostic mode 6-7
diagnostic mode modifier 6-7
function bits 6-4
halt or MCHK 6-7
I/O active 6-3
interrupt request 6-6
interrupt service active 6-5
modifier bits 6-4
power-on reset 6-7
select response 6-6
strobe 6-5
system reset 6-7
timer feature 3-3
TTY data transfer 4-3
write sequences (use of data bus) 2-7
driver/receiver circuits (timer card) 3-4
drivers
channel types and levels 2-53
customer DPC adapter 6-11
I/O channel classification 2-53
teletypewriter adapter 4-27
timer feature 3-10