Datasheet

Section 10 I/O Ports
Rev. 6.00 Mar. 18, 2010 Page 339 of 982
REJ09B0054-0600
10.7.6 Input Pull-Up MOS States in Port B
Port B has a built-in input pull-up MOS function that can be controlled by software. Input pull-up
MOS can be specified as on or off on an individual bit basis.
Table 10.3 summarizes the input pull-up MOS states.
Table 10.3 Input Pull-Up MOS States in Port B
Pin States
Power-on
Reset
Hardware
Standby
Mode
Manual
Reset
Software
Standby
Mode
In Other
Operations
Address output,
Port output, TPU
output
OFF OFF OFF OFF OFF
Port input, TPU
input
ON/OFF ON/OFF ON/OFF
Legend:
OFF: Input pull-up MOS is always off.
ON/OFF: On when PBDDR = 0 and PBPCR = 1; otherwise off.
10.8 Port C
Port C is an 8-bit I/O port and has the following registers.
• Port C data direction register (PCDDR)
• Port C data register (PCDR)
• Port C register (PORTC)
• Port C pull-up MOS control register (PCPCR)