HD64F2145 Datasheet, PDF (509/829 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

17.3.2 Keyboard Control Register L (KBCRL)
KBCRL enables the receive counter count and controls the keyboard buffer controller pin output.
Bit Bit Name Initial Value R/W
7 KBE
0
R/W
6 KCLKO 1
R/W
5 KDO
1
R/W
4—
1
—
Description
Keyboard Enable
Enables or disables loading of receive data into
KBBR.
0: Loading of receive data into KBBR is disabled
1: Loading of receive data into KBBR is enabled
Keyboard Clock Out
Controls KBC clock I/O pin output.
0: KBC clock I/O pin is low
1: KBC clock I/O pin is high
Keyboard Data Out
Controls KBC data I/O pin output.
0: KBC data I/O pin is low
1: KBC data I/O pin is high
Reserved
This bit is always read as 1 and cannot be modified.
Rev. 2.0, 08/02, page 469 of 788