r5s72060w200fpv Renesas Electronics Corporation., r5s72060w200fpv Datasheet - Page 983

• Manufacturer Part Number: r5s72060w200fpv
• Description: 32-bit Risc Microcomputer Superhtm Risc Engine Family / Sh7200 Series
• Manufacturer: Renesas Electronics Corporation.

20.6.2
PEDRH and PEDRL are 16-bit readable/writable registers that store port E data. Bits PE16DR to
PE0DR correspond to pins PE16/CS8 to PE0/TIOC0A/DREQ0, respectively.
When a pin function is general output, if a value is written to PEDRH or PEDRL, that value is
output directly from the pin, and if PEDRH or PEDRL is read, the register value is returned
directly regardless of the pin state.
When a pin function is general input, if PEDRH or PEDRL is read, the pin state, not the register
value, is returned directly. If a value is written to PEDRH or PEDRL, although that value is
written into PEDRH or PEDRL, it does not affect the pin state. Table 20.10 summarizes PEDRH
and PEDRL read/write operations.
PEDRH and PEDRL are initialized to the respective values shown in table 20.9 by a power-on
reset. PEDRH and PEDRL are not initialized by a manual reset or in sleep mode or software
standby mode.
(1)
Initial value:
Bit
15 to 6
5 to 1
0
R/W:
Port E Data Register H (PEDRH)
Bit:
Port E Data Registers H, L (PEDRH, PEDRL)
Bit Name


PE16DR
15
R
0
-
14
R
0
-
13
Initial
Value
All 0
All 1
0
R
0
-
12
R
0
-
R/W
R
R
R/W
11
R
0
-
10
R
0
-
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
Reserved
These bits are always read as 1. The write value should
always be 1.
See table 20.10
R
9
0
-
R
8
0
-
R
7
0
-
Rev. 2.00 Dec. 09, 2005 Page 959 of 1152
R
6
0
-
R
5
1
-
R
4
1
-
Section 20 I/O Ports
R
3
1
-
REJ09B0191-0200
R
2
1
-
R
1
1
-
PE16
R/W
DR
0
0