h8s-2111b Renesas Electronics Corporation., h8s-2111b Datasheet - Page 384

• Manufacturer Part Number: h8s-2111b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Figure 14.2 shows how the keyboard buffer controller is connected.
14.2
Table 14.1 lists the input/output pins used by the keyboard buffer controller.
Table 14.1 Pin Configuration
Note:
Rev. 1.00, 05/04, page 350 of 544
Channel
0
1
2
*
Input/Output Pins
KCLK out
Keyboard buffer controller
These are the external I/O pin names. In the text, clock I/O pins are referred to as KCLK
and data I/O pins as KD, omitting the channel designations.
KCLK in
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 14.2 Keyboard Buffer Controller Connection
Vcc
Abbreviation*
PS2AC
PS2AD
PS2BC
PS2BD
PS2CC
PS2CD
Vcc
Clock
Data
I/O
I/O
I/O
I/O
I/O
I/O
I/O
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
Keyboard side
I/F
KCLK in
KCLK out
KD in
KD out