HD64F38024HV Datasheet, PDF (244/684 Pages) Renesas Technology Corp – Hardware Manual Renesas 8-Bit Single-Chip Microcomputer H8 Family/H8/300L Super Low Power Series

Section 8 I/O Ports
Port Pull-Up Control Register 6 (PUCR6)
Bit
Initial value
Read/Write
7
6
5
4
3
2
1
0
PUCR6₇ PUCR6₆ PUCR6₅ PUCR6₄ PUCR6₃ PUCR6₂ PUCR6₁ PUCR6₀
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
PUCR6 controls whether the MOS pull-up of each of the port 6 pins P6₇ to P6₀ is on or off. When
a PCR6 bit is cleared to 0, setting the corresponding PUCR6 bit to 1 turns on the MOS pull-up for
the corresponding pin, while clearing the bit to 0 turns off the MOS pull-up.
Upon reset, PUCR6 is initialized to H'00.
8.6.3 Pin Functions
Table 8.15 shows the port 6 pin functions.
Table 8.15 Port 6 Pin Functions
Pin
P67/SEG16 to
P60/SEG9
Pin Functions and Selection Method
The pin function depends on bits PCR67 to PCR60 in PCR6 and bits SGS3 to
SGS0 in LPCR.
P67 to P64
SGS3 to SGS0
Other than 0100, 0101, 0110, 0111,
1000, 1001, 1010, 1011
(n = 7 to 4)
0100, 0101, 0110,
0111, 1000, 1001,
1010, 1011
PCR6n
Pin function
0
P6n input pin
1
P6n output pin
*
SEGn+9 output pin
P63 to P60
SGS3 to SGS0
PCR6m
Pin function
Other than 0011, 0100, 0101, 0110,
0111, 1000, 1001, 1010
0
P6m input pin
1
P6m output pin
(m = 3 to 0)
0011, 0100, 0101,
0110, 0111, 1000,
1001, 1010
*
SEGm+9 output pin
*: Don’t care
Rev. 8.00 Mar. 09, 2010 Page 222 of 658
REJ09B0042-0800