HD6417144 RENESAS [Renesas Technology Corp], HD6417144 Datasheet - Page 696

• Manufacturer Part Number: HD6417144
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family/SH7144 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

18. I/O Ports
18.5.2
The port E data register L (PEDRL) is a 16-bit readable/writable registers that stores port E data.
Bits PE15DR to PE0DR correspond to pins PE15 to PE0 (multiplexed functions omitted here).
When a pin functions is a general output, if a value is written to PEDRL, that value is output
directly from the pin, and if PEDRL is read, the register value is returned directly regardless of the
pin state.
When a pin functions is a general input, if PEDRL is read, the pin state, not the register value, is
returned directly. If a value is written to PEDRL, although that value is written into PEDRL it
does not affect the pin state. Table 18.5 summarizes port E data register read/write operations.
• PEDRL
Rev.4.00 Mar. 27, 2008 Page 652 of 882
REJ09B0108-0400
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Bit Name
PE15DR
PE14DR
PE13DR
PE12DR
PE11DR
PE10DR
PE9DR
PE8DR
PE7DR
PE6DR
PE5DR
PE4DR
PE3DR
PE2DR
PE1DR
PE0DR
Port E Data Register L (PEDRL)
Initial Value
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
See table 18.5