h8s-2161b Renesas Electronics Corporation., h8s-2161b Datasheet - Page 545

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

Figure 17.2 shows how the keyboard buffer controller is connected.
17.2
Table 17.1 lists the input/output pins used by the keyboard buffer controller.
Table 17.1 Pin Configuration
Note:
Channel
0
1
2
* These are the external I/O pin names. In the text, clock I/O pins are referred to as KCLK
KCLK out
Keyboard buffer controller
KCLK in
Input/Output Pins
KD out
and data I/O pins as KD, omitting the channel designations.
KD in
System side
Name
KBC clock I/O pin (KCLK0)
KBC data I/O pin (KD0)
KBC clock I/O pin (KCLK1)
KBC data I/O pin (KD1)
KBC clock I/O pin (KCLK2)
KBC data I/O pin (KD2)
(This LSI)
Figure 17.2 Keyboard Buffer Controller Connection
Vcc
Abbreviation *
PS2AC
PS2AD
PS2BC
PS2BD
PS2CC
PS2CD
Vcc
Clock
Data
Rev. 3.00 Mar 21, 2006 page 491 of 788
Section 17 Keyboard Buffer Controller
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Keyboard side
Function
KBC clock input/output
KBC data input/output
KBC clock input/output
KBC data input/output
KBC clock input/output
KBC data input/output
I/F
REJ09B0300-0300
KCLK in
KCLK out
KD in
KD out