Datasheet

Rev. 3.00, 03/04, page 195 of 830
8.3.5 Port 3 Input Pull-Up MOS
Port 3 has a built-in input pull-up MOS that can be controlled by software. This input pull-up
MOS can be used in single-chip mode. Table 8.4 summarizes the input pull-up MOS states.
Table 8.4 Port 3 Input Pull-Up MOS States
Mode Reset
Hardware Standby
Mode
Software
Standby Mode In Other Operations
Normal extended
mode (EXPE = 1,
ADMXE = 0)
Off Off Off Off
Single-chip mode
(EXPE = 0)
Address-data
multiplex extended
mode (EXPE = 1,
ADMXE = 1)
Off Off On/Off On/Off
[Legend]
Off : Always off.
On/Off : On when input state and P3PCR = 1; otherwise off.