HD6432160 RENESAS [Renesas Technology Corp], HD6432160 Datasheet - Page 235

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

Note:* When the KBIOE bit is set to 1 or the IICS bit in STCR is set to 1, this pin is an NMOS
Note:* When the KBIOE bit is set to 1, this pin is an NMOS open-drain output, and has direct bus
Operating
Mode
KBIOE
PA4DDR
IOSE
Pin
Function
Operating
Mode
KBIOE
PA3DDR
IOSE
Pin
Function
PA4/A20/.,145/CIN12/PS2BC
The pin function is switched as shown below according to the combination of operating mode,
the KBIOE bit in KBCRH_1 of the keyboard buffer controller, the IOSE bit in SYSCR, and
the PA4DDR bit.
PA3/A19/.,144/CIN11/PS2AD
The pin function is switched as shown below according to the combination of operating mode,
the KBIOE bit in KBCRH_0 of the keyboard buffer controller, the IOSE bit in SYSCR, and
the PA3DDR bit.
open-drain output, and has direct bus drive capability. This pin can always be used as the
PS2BC, .,145, or CIN12 input pin.
drive capability. This pin can always be used as the PS2AD, .,144, or CIN11 input pin.
input pin
input pin
PA4
PA3
—
—
0
0
Modes 1, 2 (EXPE = 0), 3
Modes 1, 2 (EXPE = 0), 3
0
0
PA3 output
output pin
PA4
pin
—
—
1
.,145 input pin, CIN12 input pin, PS2BC input pin*
1
.,144 input pin, CIN11 input pin, PS2AD input pin*
output pin
output pin
PS2BC
PS2AD
—
—
—
—
1
1
input pin
input pin
PA4
PA3
—
—
0
0
A19 output
output pin
Mode 2 (EXPE = 1)
Mode 2 (EXPE = 1)
Rev. 2.0, 08/02, page 195 of 788
A20
pin
0
0
0
0
1
1
PA3 output
output pin
PA4
pin
1
1
output pin
output pin
PS2BC
PS2AD
—
—
—
—
1
1