Datasheet

Table Of Contents
Section 9 I/O Ports
Rev. 2.00 Jul. 04, 2007 Page 165 of 692
REJ09B0309-0200
P30/SCK32/TMOW/CLKOUT pin
Register
Name
PMR3 PFCR SMR3_2 SCR3_2 PCR3
Bit Name TMOW CLKOUT1 CLKOUT0 SC32S COM CKE1 CKE0 PCR30
Pin Function
0 P30 input pin 0
1 P30 output pin
0
1 SCK32 output pin
0 SCK32 input pin
0
1
1 Setting prohibited
0 SCK32 output pin 0
1 Setting prohibited
0 SCK32 input pin
0
1
1
1
x
Setting prohibited
0 P30 input pin
0 x x
1
1 P30 output pin
0 CLKOUT output pin (φ
OSC
) 0
1 CLKOUT output pin (φ
OSC
/2)
0 CLKOUT output pin (φ
OSC
/4)
Setting
Value
1
1
1
x
x x x
x
TMOW output pin
[Legend]
x: Don't care
9.2.6 Input Pull-Up MOS
Port 3 has an on-chip input pull-up MOS function that can be controlled by software. When a
PCR3 bit is cleared to 0, setting the corresponding PUCR3 bit to 1 turns on the input pull-up MOS
for that pin. The input pull-up MOS function is in the off state after a reset.
(n = 7, 6, 0)
PCR3n 0 1
PUCR3n 0 1 x
Input Pull-Up MOS Off On Off
[Legend]
x: Don't care