HD6432160 RENESAS [Renesas Technology Corp], HD6432160 Datasheet - Page 506

• Manufacturer Part Number: HD6432160
• Description: Hitachi 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

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
Channel
0
1
2
Note:* These are the external I/O pin names. In the text, clock I/O pins are referred to as KCLK
Rev. 2.0, 08/02, page 466 of 788
and data I/O pins as KD, omitting the channel designations.
KCLK out
Keyboard buffer controller
KCLK in
Input/Output Pins
KD out
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
PS2CC
Abbreviation*
PS2AC
PS2AD
PS2BC
PS2BD
PS2CD
Vcc
Clock
Data
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Keyboard side
KBC clock input/output
Function
KBC clock input/output
KBC data input/output
KBC clock input/output
KBC data input/output
KBC data input/output
I/F
KCLK in
KCLK out
KD in
KD out