Epson LQ 1050 - B/W Dot-matrix Printer - Page 202

REV.-A
Table A-9. GA E05A16GA Port Functions (cent’d)
Pin No.
Signal
name
Direction
Function
57
Cs
IN Chip select signal
58
RD
IN
Read strobe signal
59
WR
IN Write strobe signal
55
DBO
Multiplex tri-state data bus bit 0-3
J
~
IN/OUT The data is output when RD signal is low.
63
DB3
64 VDD
IN + 5V
NOTE1: “Direction” refers to the direction of signal flow as viewed from the gate array.
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f
A-16