hd64338023s Renesas Electronics Corporation., hd64338023s Datasheet - Page 615

• Manufacturer Part Number: hd64338023s
• Description: Renesas 8-bit Single-chip Microcomputer Super Low Power Series
• Manufacturer: Renesas Electronics Corporation.

RDR—Receive Data Register
Bit
Initial value
Read/Write
TMA—Timer Mode Register A
Bit
Initial value
Read/Write
RDR7


W
R
7
0
7
Internal Clock Select
TMA3 TMA2
RDR6
0
1
R


W
6
0
6
0
1
0
1
RDR5
Serial receiving data are stored


W
R
5
0
5
TMA1
0
1
0
1
0
1
0
1
RDR4
TMA0


R
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
4
0
4
1
Prescaler and Divider Ratio
or Overflow Period
PSS
PSS
PSS
PSS
PSS
PSS
PSS
PSS
PSW
PSW
PSW
PSW
PSW and TCA are reset
RDR3
TMA3
Rev. 7.00 Mar 10, 2005 page 573 of 652
R/W
R
3
0
3
0
H'AD
H'B0
Appendix B Internal I/O Registers
RDR2
TMA2
φ/8192
φ/4096
φ/2048
φ/512
φ/256
φ/128
φ/32
φ/8
1 s
0.5 s
0.25 s
0.03125 s
R/W
R
2
0
2
0
RDR1
TMA1
R/W
R
1
0
1
0
REJ09B0042-0700
Clock time
base
(when
using
32.768 kHz)
Function
Interval
timer
RDR0
TMA0
R/W
R
0
0
0
0
Timer A
SCI3