HD6432160 RENESAS [Renesas Technology Corp], HD6432160 Datasheet - Page 237

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

Note:* This pin can always be used as the .,1; or CIN8 input pin.
8.11.5
Port A has an on-chip input pull-up MOS function that can be controlled by software. This input
pull-up MOS function can be specified as on or off on a bit-by-bit basis.
The input pull-up MOS for pins PA7 to PA4 is always off when IICS is set to 1. When the
keyboard buffer control pin function is selected for pins PA7 to PA2, the input pull-up MOS is
always off.
Table 8.6 summarizes the input pull-up MOS states.
Table 8.6
Legend
Off:
On/Off: On when the pin is in the input state, PADDR = 0, and PAODR = 1; otherwise off.
Operating
Mode
PA0DDR
IOSE
Pin Function
Mode
1, 2, 3
PA0/A16/#.,1;/CIN8
The pin function is switched as shown below according to the combination of operating mode,
the IOSE bit in SYSCR and the PA0DDR bit.
Input pull-up MOS is always off.
Port A Input Pull-Up MOS
Input Pull-Up MOS States (Port A)
Reset
Off
Modes 1, 2 (EXPE = 0), 3
input pin
PA0
—
0
Hardware
Standby Mode
Off
output pin
PA0
—
1
.,1; input pin, CIN8 input pin*
input pin
PA0
Software
Standby Mode
On/Off
—
0
Mode 2 (EXPE = 1)
Rev. 2.0, 08/02, page 197 of 788
output pin
A16
0
In Other
Operations
On/Off
1
output pin
PA0
1