h8s-2161b Renesas Electronics Corporation., h8s-2161b Datasheet - Page 544

• Manufacturer Part Number: h8s-2161b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 17 Keyboard Buffer Controller
Rev. 3.00 Mar 21, 2006 page 490 of 788
REJ09B0300-0300
KD
(PS2AD,
PS2BD,
PS2CD)
KCLK
(PS2AC,
PS2BC,
PS2CC)
Legend:
KD:
KCLK:
KBBR:
KBCRH: Keyboard control register H
KBCRL: Keyboard control register L
KBC data I/O pin
KBC clock I/O pin
Keyboard data buffer register
Figure 17.1 Block Diagram of Keyboard Buffer Controller
Control
logic
KDI
KCLKI
Parity
KDO
KCLKO
Register counter value
KBI interrupt
KBCRH
KBCRL
KBBR
Internal
data bus