Sharp CD-C250X BK Service Manual page 14

COMM
DATA
Figure 14-1 CD microcomputer -- Main microcomputer data transmission
SCK
COMM
DATA
Figure 14-2 CD microcomputer -- Main microcomputer data transmission
5 Pin
20ms
2.00 v
COMM
20ms
2.00 v
DATA
7 Pin
20ms
SCK
Figure 14-3
5 Pin
COM
6 Pin
2.00 v
DATA
7 Pin
2.00 v
SCK
Figure 14-5
6 BYTE
100 ms interval
6 BYTE
6 BYTE
CK: 262 kHz or less
8 BIT
I
DATA and COMM are read
at rise of SCK.
LSB FIRST
CNP 7
5ms
2.00 v
COM
6 Pin
5 ms
2.00 v
DATA
7 Pin
5 ms
2.00 v
SCK
Figure 14-4