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HD6432351 Datasheet(PDF) 431 Page - Renesas Technology Corp

Part # HD6432351
Description  16-Bit Single-Chip Microcomputer
PDF  1025 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD6432351 Datasheet(HTML) 431 Page - Renesas Technology Corp

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Section 9 I/O Ports
Rev. 3.00 Sep 15, 2006 page 397 of 988
REJ09B0330-0300
9.12.3
Pin Functions
Modes 1, 4, and 5 [H8S/2350]; Modes 1, 2, and 4 to 6 [H8S/2351]
In modes 1, 2, and 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, and 4 to 6 are shown in figure 9.23.
PE7
PE6
PE5
PE4
PE3
PE2
PE1
PE0
Port E
D7
D6
D5
D4
D3
D2
D1
D0
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
8-bit bus mode
16-bit bus mode
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
Figure 9.23 Port E Pin Functions (Modes 1, 2, and 4 to 6)
Modes 3 and 7 [H8S/2351 Only]
In modes 3 and 7, port E pins function as I/O ports. Input or output can be specified for each pin
on a bit-by-bit basis. 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.
Port E pin functions in modes 3 and 7 are shown in figure 9.24.



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