HD6432160 RENESAS [Renesas Technology Corp], HD6432160 Datasheet - Page 226

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

Notes: 1. When bit PMEE is set to 1 in HICR0, bits HI12E and P80DDR should be cleared to 0.
8.10
Port 9 is an 8-bit I/O port. Port 9 pins also function as external interrupt input pins, the A/D
converter input pin, host interface (XBS) input pins, the IIC_0 I/O pin, the subclock input pin, bus
control signal I/O pins, and the system clock (ø) output pin. P97 is an NMOS push-pull output.
SDA0 is an NMOS open-drain output, and has direct bus drive capability. Port 9 has the following
registers.
Rev. 2.0, 08/02, page 186 of 788
PMEE
HI12E
P80DDR
Pin Function
P80/HA0/30(*
The pin function is switched as shown below according to the combination of the HI12E bit in
SYSCR2, the PMEE bit in HICR0, and the P80DDR bit.
Port 9 data direction register (P9DDR)
Port 9 data register (P9DR)
2.
3.
Port 9
The HA0 input pin can only be used in mode 2 or 3 (EXPE = 0).
Not supported by the H8S/2148B.
3
P80 input pin
0
0
P80 output pin
1
0
30( input pin*
HA0 input pin*
2
*
3
—
1
2
30( output pin
0*
0*
1
1
1