hd64338342hw Renesas Electronics Corporation., hd64338342hw Datasheet - Page 616

• Manufacturer Part Number: hd64338342hw
• Description: Renesas 8-bit Single-chip Microcomputer H8 Family/h8/300l Super Low Power Series
• Manufacturer: Renesas Electronics Corporation.

Appendix B Internal I/O Registers
SCSR1—Serial Control Status Register 1
Rev. 6.00 Aug 04, 2006 page 580 of 680
REJ09B0145-0600
Bit
Initial value
Read/Write
Note: * Only a write of 0 for flag clearing is possible.
7
1
Extension data bit
SOL
R/W
0
1
6
0
Read
Write
Read
Write
Overrun error flag
ORER
R/(W)
0 [Clearing condition]
1 [Setting condition]
5
0
SO
Changes SO
SO
Changes SO
After reading ORER = 1, cleared by writing 0 to ORER
When an external clock is used and the clock is input
after transfer is completed
Tail mark transmission flag
0 Idle state, or 8-bit/16-bit data transfer in progress
1 Tail mark transmission in progress
*
1
1
pin output level is low
pin output level is high
Start flag
0
1
4
1
Read
Write
Read
Write
1
1
pin output to low level
pin output to high level
Transfer operation stopped
Invalid
Transfer operation in progress
Starts transfer operation
3
1
H'A1
2
1
MTRF
R
1
0
STF
R/W
0
0
SCI1