hd64338342hw Renesas Electronics Corporation., hd64338342hw Datasheet - Page 617

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

SDRU—Serial Data Register U
SDRL—Serial Data Register L
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
Undefined
Undefined
SDRU7
SDRL7
R/W
R/W
7
7
Undefined
Undefined
SDRU6
SDRL6
R/W
R/W
6
6
Undefined
Undefined
SDRU5
Used for transmit data setting and receive data storage
8-bit transfer mode:
16-bit transfer mode: Lower 8 bits of data register
Used for transmit data setting and receive data storage
8-bit transfer mode:
16-bit transfer mode: Upper 8 bits of data register
SDRL5
R/W
R/W
5
5
Undefined
Undefined
SDRU4
SDRL4
R/W
R/W
4
4
Undefined
Undefined
Rev. 6.00 Aug 04, 2006 page 581 of 680
SDRU3
SDRL3
R/W
R/W
Data register
3
Not used
3
Appendix B Internal I/O Registers
Undefined
Undefined
SDRU2
H'A2
H'A3
SDRL2
R/W
R/W
2
2
Undefined
Undefined
SDRU1
SDRL1
R/W
R/W
REJ09B0145-0600
1
1
Undefined
Undefined
SDRU0
SDRL0
R/W
R/W
0
0
SCI1
SCI1