S-7600A Datasheet, PDF (16/55 Pages) Seiko Instruments Inc – Hardware Specification (TCP/IP Network Stack LSI)

S-7600A
Hardware Specification
5. MPU Interface
5.1. Overview
The S-7600A supports two MPU interfaces: parallel and serial. In parallel interface mode, S-7600A can
interface with x80 Family MPU or 68k Family MPU.
PSX
CS RS READ WRITEX BUSYX C86 SD7 SD6 SD5 SD4 to SD0
X
H:
CS RS READ WRITEX BUSYX
L
D7
D6
D5
D4 to D0
parallel x80
X
H:
CS RS
E
R/WX BUSYX
H
D7
D6
D5
D4 to D0
parallel 68k
L:
CS RS H or L R/WX BUSYX H or L SI SCL SO
Hi-Z
serial
Table 5-1
Interface Selection
5.2. Parallel Interface
Setting PSX to “H” select the parallel interface. In parallel interface mode the S-7600A can interface
with either x80 Family MPU or 68k Family MPU. The desired MPU mode can be selected by setting the
C86 pin to “H” or “L”.
RS
68k Family MPU
x80 Family MPU
Function
R/WX
READX WRITEX
1
1
0
1
Read Register
1
0
1
0
Write Register
0
1
0
1
Read Index Register
0
0
1
0
Write Index Register
Table 5-2 Connection Relationship between MPU and Pins
10
Seiko Instruments Inc.