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

Section 17 Keyboard Buffer Control Unit (KBU)
17.3.5

Keyboard Data Buffer Register (KBBR)

KBBR stores receive data. Its value is valid only when KBF = 1.
Bit Bit Name Initial Value
7 KB7 0
6 KB6 0
5 KB5 0
4 KB4 0
3 KB3 0
2 KB2 0
1 KB1 0
0 KB0 0
17.3.6

Keyboard Buffer Transmit Data Register (KBTR)

KBTR stores transmit data.
Bit Bit Name Initial Value
7 KBT7 1
6 KBT6 1
5 KBT5 1
4 KBT4 1
3 KBT3 1
2 KBT2 1
1 KBT1 1
0 KBT0 1
Rev. 3.00 Jul. 14, 2005 Page 592 of 986
REJ09B0098-0300
R/W Description
R Keyboard Data 7 to 0
R 8-bit read only data.
R Initialized to H'00 by a reset, in hardware standby
mode or when KBIOE is cleared to 0.
R
R
R
R
R
R/W Description
R/W Keyboard Buffer Transmit Data Register 7 to 0
R/W Initialized to H'00 at reset, in hardware standby mode.
R/W
R/W
R/W
R/W
R/W
R/W