Getr Data Table - IBM 5100 Maintenance Information Manual

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GETR DA, Ry (op code 0): A data byte is transferred
from an I/O device designated by DA, via bus in, to the
low order byte of data register (Ry).
The 'get strobe' is activated on this microinstruction.
GETR Data Table
Device
Address
Device
Bits State
Bits 4-7 Name 8-15 of Bit Definition
0 Controller Not used
11
Nonexecutable Use two GETB microinstructions to get even-odd bytes
ROS
8
ROS data byte bit 0
9 ROS data byte bit 1
10 ROS data byte bit 2
11 ROS data byte bit 3
12 ROS data byte bit 4
13 ROS data byte bit 5
14
ROS data byte bit 6
15 ROS data byte bit 7
2
Not. assigned
3
4 Keyboard and 8
0
Keyboard data bit 0
control panel Not keyboard data bit 0
switches 9 0 Keyboard data bit 1
1 Not keyboard data bit 1
10 0 Keyboard data bit 2
1
Not keyboard data bit 2
11 0 Keyboard data bit 3
1 Not keyboard data bit 3
12 0 Keyboard data bit 4
1 Not keyboard data bit 4
13 0
Keyboard data bit 5
1 Not keyboard data bit 5
14 0
Keyboard data bit 6
1 Not keyboard data bit 6
15 0 Keyboard data bit 7
Not keyboard data bit 7
1
Device has subdevice addressing capability. See the 1/0 microinstructions description under Microinstructions
in this section.
Microinstructions
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