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4513/4514 Group User’s Manual
HARDWARE
1-39
FUNCTION BLOCK OPERATIONS
Fig. 25 Timing of serial I/O data transfer
S
IN
S
OUT
SCK
S
OUT
S
IN
S
0
S
7
’S
1
S
2
S
3
S
4
S
5
S
6
S
7
S
0
S
7
’
S
1
S
3
S
4
S
5
S
6
S
7
M
0
M
7
’
M
1
M
2
M
3
M
4
M
5
M
6
M
7
M
0
M
7
’M
1
M
2
M
3
M
4
M
5
M
6
M
7
S
2
M
0
–M
7
: the contents of master serial I/O S
0
–S
7
: the contents of slave serial I/O register
Rising of SCK : serial input Falling of SCK : serial output
Master
Slave
SST instruction
SST instruction
S
RDY
signal