HD64F2145 Datasheet, PDF (248/829 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

8.14.4 Port C and Port D Nch-OD Control Register (PCNOCR, PDNOCR)
PCNOCR and PDNOCR specify the output driver type for pins on ports C and D which are
configured as outputs on a bit-by-bit basis.
Bit Bit Name Initial Value R/W Description
7
PC7NOCR 0
R/W 0: CMOS (p-channel driver enabled)
6
PC6NOCR 0
R/W 1: N-channel open drain (p-channel driver disabled)
5
PC5NOCR 0
R/W
4
PC4NOCR 0
R/W
3
PC3NOCR 0
R/W
2
PC2NOCR 0
R/W
1
PC1NOCR 0
R/W
0
PC0NOCR 0
R/W
Bit Bit Name Initial Value R/W Description
7
PD7NOCR 0
R/W 0: CMOS (p-channel driver enabled)
6
PD6NOCR 0
R/W 1: N-channel open drain (p-channel driver disabled)
5
PD5NOCR 0
R/W
4
PD4NOCR 0
R/W
3
PD3NOCR 0
R/W
2
PD2NOCR 0
R/W
1
PD1NOCR 0
R/W
0
PD0NOCR 0
R/W
8.14.5 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 208 of 788