hd64338023s Renesas Electronics Corporation., hd64338023s Datasheet - Page 262

• Manufacturer Part Number: hd64338023s
• Description: Renesas 8-bit Single-chip Microcomputer Super Low Power Series
• Manufacturer: Renesas Electronics Corporation.

Section 8 I/O Ports
Port Pull-Up Control Register 6 (PUCR6)
PUCR6 controls whether the MOS pull-up of each of the port 6 pins P6
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
Table 8.15 shows the port 6 pin functions.
Table 8.15 Port 6 Pin Functions
Pin
P6
P6
Rev. 7.00 Mar 10, 2005 page 220 of 652
REJ09B0042-0700
Bit
Initial value
Read/Write
7
0
/SEG
/SEG
16
9
Pin Functions
to
PUCR6
Pin Functions and Selection Method
The pin function depends on bits PCR6
SGS0 in LPCR.
P6
P6
R/W
SGS3 to SGS0
SGS3 to SGS0
7
0
7
3
Pin function
Pin function
to P6
to P6
PCR6
PCR6
7
PUCR6
4
0
R/W
m
n
6
0
6
PUCR6
R/W
Other than 0100, 0101, 0110, 0111,
Other than 0011, 0100, 0101, 0110,
5
0
P6
P6
m
n
5
input pin
input pin
1000, 1001, 1010, 1011
0111, 1000, 1001, 1010
PUCR6
0
0
R/W
4
0
4
PUCR6
7
to PCR6
R/W
3
0
P6
P6
m
n
3
output pin
output pin
PUCR6
0
1
1
in PCR6 and bits SGS3 to
R/W
2
0
7
to P6
2
PUCR6
0
R/W
is on or off. When
0100, 0101, 0110,
0111, 1000, 1001,
0011, 0100, 0101,
0110, 0111, 1000,
SEG
SEG
1
0
(n = 7 to 4)
(m = 3 to 0)
1010, 1011
1001, 1010
1
m+9
n+9
*: Don’t care
PUCR6
output pin
output pin
*
*
R/W
0
0
0