REV.-A
Table A-1 O. GA E05A16GA Control Functions (cent’d)
05H
READ
Read the 9th pin data of the Super/Subscript generator.
Interface parameter bit 7
~
DB7
WRITE Write the 9th pin data to the Super/Subscript generator.
DB7
~
9th pin data of the Super/Subscript generator.
06H
READ
Read 8 bits data from the Super/Subscript generator.
8 bits data of the Super/Subscript generator
~
DB7-O.
WRITE Write 8 bits data to the Super/Subscript generator.
DB7-O
~
Super/Subscript generator.
07H
READ
Read data from the parallel data latch.
IN7-O
~
DB7-O
WRITE Write data to the Super/Subscript generator and port D.
DB 1-2
~
PD 1-2
This gate array logically ANDs the two external reset signal inputs using internal logic, then outputs
~
the result to an external device (one-channel) and resets the ports internally. Table A-1 1 shows the port
““
settings after they are reset.
Table A-1 1. GA E05A16GA Initialized State
Port
Setting
Port B
(PB7-PBO) High
port C
(PC7-PB2) Low
(PC1-PCO)
High
Port D (PD 1)
High
(PDO)
Low
Interface control port
Low
(except bit 2)
(o)
Hard-ware BUSY signal
Low (Ready)
f-’.
A-18
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