HD6412240 RENESAS [Renesas Technology Corp], HD6412240 Datasheet - Page 312

• Manufacturer Part Number: HD6412240
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 8 I/O Ports
8.11.4
Port E has a built-in MOS input pull-up function that can be controlled by software. This MOS
input pull-up function can be used in modes 1, 2, 4, 5, and 6 when 8-bit bus mode is selected, or in
mode 3 or 7, and can be specified as on or off on an individual bit basis.
When a PEDDR bit is cleared to 0 in mode 1, 2, 4, 5, or 6 when 8-bit bus mode is selected, or in
mode 3 or 7, setting the corresponding PEPCR bit to 1 turns on the MOS input pull-up for that pin.
The MOS input pull-up function is in the off state after a power-on reset, and in hardware standby
mode. The prior state is retained after a manual reset, and in software standby mode.
Note:
Table 8.20 summarizes the MOS input pull-up states.
Table 8.20 MOS Input Pull-Up States (Port E)
Modes
3, 7
1, 2, 4 to 6
Legend:
OFF:
ON/OFF: On when PEDDR = 0 and PEPCR = 1; otherwise off.
Rev.3.00 Mar. 26, 2007 Page 270 of 772
REJ09B0355-0300
Modes 2, 3, 6, and 7 cannot be used in the H8S/2240.
MOS Input Pull-Up Function
MOS input pull-up is always off.
8-bit bus
16-bit bus
Power-On
Reset
OFF
Hardware
Standby Mode
OFF
Manual
Reset
ON/OFF ON/OFF
OFF
Software
Standby Mode
OFF
In Other
Operations
ON/OFF
OFF