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Section 8 I/O Ports
(8)
Port 3 Input Pull-Up MOS
Port 3 has built-in input pull-up MOSs that can be controlled by software. The input pull-up MOS
can be used in single-chip mode and address-data multiplex extended mode. Table 8.12
summarizes the input pull-up MOS states.
Table 8.12 Port 3 Input Pull-Up MOS States
Mode
Normal extended mode
(EXPE = 1, ADMXE = 0)
Single-chip mode (EXPE = 0)
Address-data multiplex
extended mode (EXPE = 1,
ADMXE = 1)
[Legend]
Off:
Always off.
On/Off: On when input state and P3PCR = 1; otherwise off.
Rev. 1.00 Mar. 12, 2008 Page 288 of 1178
REJ09B0403-0100
Hardware
Reset
Standby Mode
Off
Off
Off
Off
Software Standby
In Other
Mode
Operations
Off
Off
On/Off
On/Off
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