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A parallel interface card MZ-8BP51 or MZ-8KP41 (option) is available for MZ-80P6. The following is
an explanation of th is parallel interface.
1. Signal terminal
Signal terminal
Pin arrangement of the input/output
signal terminal of the printer is as
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shown in the Fig. on the right.
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2. Signal arrangement and explanation
Pin No.
Signal
Direction
Explanation
1
RDP
Input
• Th is is the strobe signal for data (R 01'" R D8) read-i n. Data is
read in after the signal reaches a high level.
• Positive logic
2
RD1
Input
• I t shows 8-bit parallel data from the 1 st bit to 8th bit.
R D 1, RD8 match LSB, MSB respectively.
3
RD2
Input
4
RD3
Input
5
RD4
Input
6
RD5
Input
7
RD6
Input
8
RD7
Input
9
RD8
Input
10
IRT
Input
• It is the initial reset signal and forcedly returns the printer
to READY. (Same conditions when turning power on)
11
-
RDA
Output
•
It is a signal to indicate whether printing is possible or not
(Data can be entered or not).
• I t is negative logic and data can be entered with the signal at
a low level.
21
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