Port 2 Input Pull-Up Mos; Port 3; Table 9.3 Port 2 Input Pull-Up Mos States - Renesas H8S/2158 User Manual

Single-Chip Mode:
The function of port 2 pins is switched as shown below according to the combination of the OEm
bit in PWOERB of PWM and the P2nDDR bit.
P2nDDR
OEm
Pin function P27 to P20 input pins
Notes: n = 7 to 0
m = 15 to 8
9.2.5

Port 2 Input Pull-Up MOS

Port 2 has a built-in input pull-up MOS that can be controlled by software. This input pull-up
MOS can be used regardless of the operating mode. Table 9.3 summarizes the input pull-up MOS
states.
Table 9.3 Port 2 Input Pull-Up MOS States
Hardware Standby
Reset Mode
Off Off
Legend:
Off: Always off.
On/Off: On when P2DDR = 0 and P2PCR = 1; otherwise off.
9.3

Port 3

Port 3 is an 8-bit I/O port. Port 3 pins also function as a bidirectional data bus, CompactFlash
bidirectional data bus, wake-up event input, and MCIF input/output pins. Port 3 functions change
according to the operating mode. Port 3 has the following registers.
• Port 3 data direction register (P3DDR)
• Port 3 data register (P3DR)
• Port 3 pull-up MOS control register (P3PCR)
0
—
P27 to P20 input pins
Software Standby Mode
On/Off
1
0
PW15 to PW8 output pins
In Other
Operations
On/Off
Rev. 3.00 Jan 25, 2006 page 215 of 872
Section 9 I/O Ports
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REJ09B0286-0300