E62655RUSB Renesas Electronics America, E62655RUSB Datasheet - Page 443

• Manufacturer Part Number: E62655RUSB
• Description: EMULATOR BASE H8S/2655R W/USB
• Manufacturer: Renesas Electronics America
• Type: Microcontrollerr

Specifications of E62655RUSB

• Contents: E6000 Emulator Unit and 4 Logic Probes
• For Use With/related Products: H8S/2655R
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Port E MOS Pull-Up Control Register (PEPCR)
PEPCR is an 8-bit readable/writable register that controls the MOS input pull-up function
incorporated into port E on an individual bit basis.
When a PEDDR bit is cleared to 0 (input port setting) when 8-bit bus mode is selected in mode 1,
2, 4 to 6, or in mode 3 or 7, setting the corresponding PEPCR bit to 1 turns on the MOS input pull-
up for the corresponding pin.
PEPCR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its
prior state after a manual reset, and in software standby mode.
9.12.3
Modes 1, 2, 4 to 6
In modes 1, 2, 4 to 6, when 8-bit access is designated and 8-bit bus mode is selected, port E pins
are automatically designated as I/O ports. Setting a PEDDR bit to 1 makes the corresponding port
E pin an output port, while clearing the bit to 0 makes the pin an input port.
When 16-bit bus mode is selected, the input/output direction specification by PEDDR is ignored,
and port E is designated for data I/O.
Port E pin functions in modes 1, 2, 4 to 6 are shown in figure 9.23.
Bit
Initial value
R/W
Pin Functions
:
:
:
PE7PCR
R/W
7
0
PE6PCR
R/W
6
0
PE5PCR
R/W
5
0
PE4PCR
R/W
4
0
Rev. 5.00 Sep 14, 2006 page 413 of 1060
PE3PCR
R/W
3
0
PE2PCR
R/W
2
0
PE1PCR
Section 9 I/O Ports
R/W
REJ09B0331-0500
1
0
PE0PCR
R/W
0
0