h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 254

• Manufacturer Part Number: h8s-2649
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 9 I/O Ports
9.11.4
PEPCR controls the MOS input pull-up function incorporated into port E on an individual bit
basis.
9.11.5
The correspondence between the register specification and the pin functions is shown below.
Rev. 2.00 Dec. 05, 2005 Page 216 of 724
REJ09B0200-0200
Bit
7
6
5
4
3
2
1
0
Setting of
SEG3 to
SEG0
Operating
mode
Bus width
setting
PEDDR
Pin function
Port E Pull-Up MOS Control Register (PEPCR)
Pin Functions
Bit Name
PE7PCR
PE6PCR
PE5PCR
PE4PCR
PE3PCR
PE2PCR
PE1PCR
PE0PCR
D7 to D0 I/O
16-bit mode
—
Initial
Value
0
0
0
0
0
0
0
0
Modes 4 to 6
PE7 to PE0
input
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
8-bit mode
Description
In modes 4 to 6 with 8-bit-bus mode selected, or in
mode 7, if a pin is in the input state in accordance with
the settings in PEDDR and PEDDR, setting the
corresponding PEPCR bit to 1 turns on the MOS input
pull-up for that pin.
PE7 to PE0
output
Port
1
PE7 to PE0
input
0
Mode 7
—
PE7 to PE0
output
1
SEG8 to
output
output
SEG1
SEG
—
—
—