Keyboard Data Buffer Register (Kbbr); Keyboard Buffer Transmit Data Register (Kbtr) - Renesas H8S/2100 Series Hardware Manual

Section 19 Keyboard Buffer Control Unit (PS2)
19.3.5

Keyboard Data Buffer Register (KBBR)

KBBR stores receive data. Its value is valid only when KBF = 1.
Bit Bit Name
7 KB7
6 KB6
5 KB5
4 KB4
3 KB3
2 KB2
1 KB1
0 KB0
19.3.6

Keyboard Buffer Transmit Data Register (KBTR)

KBTR stores transmit data.
Bit Bit Name
7 KBT7
6 KBT6
5 KBT5
4 KBT4
3 KBT3
2 KBT2
1 KBT1
0 KBT0
Rev. 1.00 Apr. 28, 2008 Page 598 of 994
REJ09B0452-0100
Initial
Value R/W Description
0 R Keyboard Data 7 to 0
0 R 8-bit read only data.
0 R Initialized to H'00 by a reset or when KBIOE is cleared
to 0.
0 R
0 R
0 R
0 R
0 R
Initial
Value R/W Description
1 R/W Keyboard Buffer Transmit Data Register 7 to 0
1 R/W Initialized to H'00 at reset.
1 R/W
1 R/W
1 R/W
1 R/W
1 R/W
1 R/W