Sharp MZ-5500 User Manual

~1'K.yboard processor (8OC49) signal functions
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Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
19
20
21
22
23
24
25
26
27
30
31
32
33
34
35
36
37
38
39
40
Signal name
TO
XTAL1
XTAL2
AESET
SS
iiif
EA
AD
PSEN
WR
ALE
DBO
DB7
Vss
P20
P21
P22
P23
PAOG
VDD
P10
P13
P14
P15
P16
P17
P24
P25
P26
P27
T1
Vcc
Table 44
IN/OUT Description
IN Data or READY signal input from the System Unit
IN Accepts a quartz signal (6MHz) for the internal clock oscillator.
IN Accepts a quartz signal (6MHz) for the internal clock oscillator.
IN
Initialization input of SOC49
IN +5V
IN CPU interrupt strobe input (STC)
IN
GND
-
N.C
-
N.C
-
N.C
-
N.C
IN Returns signals from the keyboard.
IN GND
OUT Send data to the System Unit (DK)
OUT
Data enable/start signal (SAK) to CPU
OUT Enables data send to the mouse (CTS)
-
N.C
-
N.C
IN +5V
OUT Strobe to the keyboard.
OUT
CAPS ind!?tor drive signal
OUT
GRAPH indicator drive signal
OUT N.C
-
N.C
-
N.C
-
N.C
-
N.C
-
N.C
IN
Mouse data input (TXO)
IN +5V power supply
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MZ-5600

Sharp MZ-5500 Specifications

General

Brand	Sharp
Model	MZ-5500
Category	Desktop
Language	English