HD64F2145 Datasheet, PDF (253/829 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

8.15.4 Port E and Port F Nch-OD Control Register (PENOCR, PFNOCR)
PENOCR and PFNOCR specify the output driver type for pins on ports E and F which are
configured as outputs on a bit-by-bit basis.
Bit Bit Name Initial Value R/W
7
PE7NOCR 0
R/W
6
PE6NOCR 0
R/W
5
PE5NOCR 0
R/W
4
PE4NOCR 0
R/W
3
PE3NOCR 0
R/W
2
PE2NOCR 0
R/W
1
PE1NOCR 0
R/W
0
PE0NOCR 0
R/W
Description
0: CMOS (p-channel driver enabled)
1: N-channel open drain (p-channel driver disabled)
Bit Bit Name Initial Value R/W
7
PF7NOCR 0
R/W
6
PF6NOCR 0
R/W
5
PF5NOCR 0
R/W
4
PF4NOCR 0
R/W
3
PF3NOCR 0
R/W
2
PF2NOCR 0
R/W
1
PF1NOCR 0
R/W
0
PF0NOCR 0
R/W
Description
0: CMOS (p-channel driver enabled)
1: N-channel open drain (p-channel driver disabled)
8.15.5 Pin Functions
DDR
NOCR
ODR
N-ch. driver
P-ch. driver
Input pull-up MOS
Pin function
0
—
0
1
OFF
OFF
OFF
ON
Input pin
1
0
1
0
1
0
1
ON
OFF
ON
OFF
OFF
ON
OFF
OFF
Output pin
Rev. 2.0, 08/02, page 213 of 788