HD64F3642AHV Datasheet, PDF (481/551 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

SDRU—Serial data register U
Appendix B Internal I/O Registers
H'FFA2
SCI1
Bit
Initial value
Read/Write
7
6
5
4
3
2
1
0
SDRU7 SDRU6 SDRU5 SDRU4 SDRU3 SDRU2 SDRU1 SDRU0
Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined
R/W
R/W
R/W
R/W R/W
R/W
R/W R/W
Stores transmit and receive data
8-bit transfer mode: Not used
16-bit transfer mode: Upper 8 bits of data
SDRL—Serial data register L
H'FFA3
SCI1
Bit
Initial value
Read/Write
7
6
5
4
3
2
1
0
SDRL7 SDRL6 SDRL5 SDRL4 SDRL3 SDRL2 SDRL1 SDRL0
Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined
R/W
R/W
R/W
R/W R/W
R/W
R/W R/W
Stores transmit and receive data
8-bit transfer mode: 8-bit data
16-bit transfer mode: Lower 8 bits of data
Rev. 6.00 Sep 12, 2006 page 459 of 526
REJ09B0326-0600