Datasheet

Section 10 I/O Ports
Rev.7.00 Mar. 18, 2009 page 528 of 1136
REJ09B0109-0700
10.13.6 Port E Input Pull-Up MOS States
Port E has a built-in input pull-up MOS function that can be controlled by software. This input
pull-up MOS function can be used in 8-bit bus mode. Input pull-up MOS can be specified as on or
off on a bit-by-bit basis. In 8-bit bus mode, when a PEDDR bit is cleared to 0, setting the
corresponding PEPCR bit to 1 turns on the input pull-up MOS for that pin.
Table 10.6 summarizes the input pull-up MOS states.
Table 10.6 Input Pull-Up MOS States (Port E)
Mode Reset
Hardware
Standby Mode
Software
Standby Mode
In Other
Operations
1, 2, 4 8-bit bus Off Off On/Off On/Off
16-bit bus Off Off
Legend:
Off: Input pull-up MOS is always off.
On/Off: On when PEDDR = 0 and PEPCR = 1; otherwise off.
10.14 Port F
Port F is an 8-bit I/O port that also has other functions. The port F has the following registers. For
details on the port function control register 2, refer to section 10.3.5, Port Function Control
Register 2 (PFCR2).
• Port F data direction register (PFDDR)
• Port F data register (PFDR)
• Port F register (PORTF)
• Port Function Control Register 2 (PFCR2)