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SH7018 Datasheet(PDF) 329 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) 329 Page - Renesas Technology Corp

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15.7.2
Port E Data Register (PFDR)
The port F data register (PFDR) is an 8-bit read-only register that stores port F data. The bits of
this register correspond to the various pins.
Writes to these bits are ignored, and do not affect the pin states. When these bits are read the pin
state, not the register value, is returned directly. However, 1 is returned while A/D converter
analog input is being sampled. Table 15.12 summarizes the port E data register read/write
operations.
PFDR is not initialized by a power-on reset, in standby mode, or in sleep mode. (The bits always
reflect the pin states.)
Bit:
7
6
5
4
3
2
1
0
PF7DR
PF6DR
PF5DR
PF4DR
PF3DR
PF2DR
PF1DR
PF0DR
Initial value:
**
**
***
*
R/W:
R
R
R
R
R
R
R
R
Note: * These values depend on the pin state when the initial value is read.
Table 15.12 Port F Data Register (PFDR) Read/Write Operations
Pin Function
Pin state
Read
Write
Input
General input
Pin state is read
Ignored (does not affect pin state)
ANn
1 is read
Ignored (does not affect pin state)
ANn: Analog input



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