h8s-2161b Renesas Electronics Corporation., h8s-2161b Datasheet - Page 253

• Manufacturer Part Number: h8s-2161b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

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 ( ) 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.
PMEE
HI12E
P80DDR
Pin Function
P80/HA0/PME *
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. The HA0 input pin can only be used in mode 2 or 3 (EXPE = 0).
3. Not supported by the H8S/2148B and H8S/2145B (5-V version).
Port 9
3
P80 input pin
0
0
P80 output pin
1
0
PME input pin *
Rev. 3.00 Mar 21, 2006 page 199 of 788
HA0 input pin *
2
*
3
—
1
2
Section 8 I/O Ports
REJ09B0300-0300
PME output pin
0 *
0 *
1
1
1