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SH7018 Datasheet(PDF) 314 Page - Renesas Technology Corp

Part # SH7018
Description  SuperH??RISC engine
PDF  431 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7018 Datasheet(HTML) 314 Page - Renesas Technology Corp

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298
14.3.9
Port E IO Register (PEIOR)
The port E IO register (PEIOR) is a 16-bit readable/writable register that selects the input/output
direction of the pins in port E. The bits of this register correspond to the various pins. PEIOR is
enabled when the port E pins function as general input/output (PE14 to PE4, PE2, and PE0) pins
or TIOC pins for the MTU, and disabled otherwise.
When the port E pins function as PE14 to PE4, PE2, and PE0 pins or TIOC pins for the MTU, a
pin becomes an output when the corresponding bit in PEIOR is set to 1, and an input when the bit
is cleared to 0.
PEIOR is initialized to H'0000 by an external power-on reset. However, it is not initialized by a
WDT reset, in standby mode, or in sleep mode. In these cases it retains its previous data.
Bit:
15
14
13
12
11
10
9
8
—
PE14IOR PE13IOR PE12IOR PE11IOR PE10IOR PE9IOR
PE8IOR
Initial value:
0
0
0
0
0
0
0
0
R/W:
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit:
7
6
5
4
3
2
1
0
PE7IOR
PE6IOR
PE5IOR
PE4IOR
—
PE2IOR
—
PE0IOR
Initial value:
0
0
0
0
0
0
0
0
R/W:
R/W
R/W
R/W
R/W
R
R/W
R
R/W



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