M54610P Просмотр технического описания (PDF) - MITSUBISHI ELECTRIC
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M54610P Datasheet PDF : 9 Pages
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MITSUBISHI <CONTROL / DRIVER IC>
M54610P
8-BIT PARALLEL DATA INTERFACE FOR PRINTER
PIN FUNCTION DESCRIPTION
Pin No.
9
10
11
Pin name
BUSY
ACK
DIN8
BUSY output to host
ACKNOWLEDGE output to host
8-bit parallel data input from host
Function
18
DIN1
19
STB
Data strobe pulse input from host
20
PSW
Polarity switching input for STB
6
GND
GND
21
35
22
DOU1
8-bit parallel data output to printer controller (3-state)
29
DOU8
30
RD
Read input from printer controller
31
WR
Write input from printer controller
32
CS
Chip select input from printer controller
33
ACKI
ACKNOWLEDGE input from printer controller
34
BSSL
BUSY select input. Switches busy timing.
36
EBSY
External BUSY input from printer controller
37
BSYF
BUSY flag output to printer controller
39
RDY
Inverted BUSY output to printer controller
42
VCC
Power supply
OPERATION TIMING DIAGRAM
When initialized
Input from
printer controller
EBSY
CS
WR
RD
ACKI
When data is read
Output to DOU1 – 8
printer controller
BSYF
∗1
Output to
ACK
host controller
BUSY
∗2
∗1
∗2
Input from
host controller
STB
DIN1 – 8
Valid data
∗1 : The broken lines of BSYF and BUSY show the timing when PSW is low.
∗2 : The broken lines of BUSY signal show the timing when BSSL is low.
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