RCA 301 Programmer's Reference Manual page 106

; Input/Output Control (IOC)
F r ea.4vf « •oo-V e>
57
General Description
This instruction performs the Read Release, Punch Release and Stacker Select functions for the Card Reader-
Punch, Model 330, and the Read Release function for the Card Readers, Model 324 and 329.
Format
Operation — ;
N -(
A Address — A , A
0 l5
— A — designates function to be performed:
3
A
3
1
2
3
4
5
6
f
7
M <?T _
• 8
v sp.
B Address — Must be zeros (0000).
Outline of Operation
The A character is sent to the control module. After the operation is initiated, the registers are available for
3
use by the next instruction.
Final Register Contents
(A), - (A),
(B) = (B),
t
Timing
42 s.
M
VIII-20
A — Must be zeros (000).
2
Card Reader—Punch
Model 330
Select Reader Stacker No. 1
Select Reader Stacker No. 2
Select Punch Stacker No. 4
Select Punch Stacker No. 8
Read Release
Punch Release
Read Release and Select Stacker No. 1
Read Release and Select Stacker No. 2
Punch Release and Select Stacker No. 4
Punch Release and Select Stacker No. 8
FUNCTION
Card Reader
Model 324
Read Release
Card Reader
Model 329
Read Release