HD6432646 Hitachi, HD6432646 Datasheet - Page 313
HD6432646
Manufacturer Part Number
HD6432646
Description
(HD64F264x Series) 16-Bit Microcomputer
Manufacturer
Hitachi
Datasheet
1.HD6432646.pdf
(1155 pages)
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9.12.3
The port E pin functions are listed in tables 9-26 (1) and 9-26 (2).
Table 9-26 (1)
Table 9-26 (2)
9.12.4
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 4 to 6 when 8-bit bus mode is selected, or in mode 7,
and can be specified as on or off on an individual bit basis.
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 LPCR and PEDDR, 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 reset, and in hardware standby mode.
The prior state is retained in software standby mode.
Table 9-27 summarizes the MOS input pull-up states.
Operating mode
Bus width setting
PEDDR
Pin function
Setting of SEG3 to
SEG0
Operating mode
Bus width setting
PEDDR
Pin function
Pin Functions
MOS Input Pull-Up Function
Port E Pin Functions (H8S/2646, H8S/2646R, H8S/2645)
Port E Pin Functions (H8S/2648, H8S/2648R, H8S/2647)
D7 to D0 I/O PE7 to PE0
16-bit mode
16-bit mode
D7 to D0 I/O
—
—
Modes 4 to 6
Modes 4 to 6
input
PE7 to PE0
0
8-bit mode
input
0
8-bit mode
PE7 to PE0
output
Port
1
PE7 to PE0
output
1
PE7 to PE0
input
0
Mode 7
PE7 to PE0
—
input
PE7 to PE0
0
output
1
Mode 7
—
PE7 to PE0
output
SEG1 to
output
output
SEG8
SEG
1
—
—
—
279
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