HD404374 Datasheet, PDF (101/161 Pages) Renesas Technology Corp – Low-Voltage AS Microcomputers with On-Chip A/D Converter

HD404374/HD404384/HD404389/HD404082/HD404084 Series
Serial data register (lower) (SRL: $026)
Bit
3
2
1
0
Read/Write
R/W
R/W
R/W
R/W
Initial value on reset Undetermined Undetermined Undetermined Undetermined
Bit name
SR3
SR2
SR1
SR0
Figure 58 Serial Data Register (SRL)
Serial data register (upper) (SRU: $027)
Bit
3
2
1
0
Read/Write
R/W
R/W
R/W
R/W
Initial value on reset Undetermined Undetermined Undetermined Undetermined
Bit name
SR7
SR6
SR5
SR4
Figure 59 Serial Data Register (SRU)
Serial
clock
Serial output
data
Serial input
data latch
timing
1
2
3
4
5
6
7
8
LSB
MSB
Figure 60 Serial Interface Input/Output Timing Chart
Rev.5.00, Sep.11.2003, page 101 of 161