HD6417641 RENESAS [Renesas Technology Corp], HD6417641 Datasheet - Page 902

• Manufacturer Part Number: HD6417641
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 23 I/O Ports
23.5.1
Port E has the following register.
• Port E data register (PEDR)
23.5.2
PEDR is a 16-bit readable/writable register that stores data for pins PTE15 to PTE0. The PEDR is
initialized to H'0000 by a power-on reset, but it retains its previous value by a manual reset, in
standby mode, or in sleep mode.
Rev. 4.00 Sep. 14, 2005 Page 852 of 982
REJ09B0023-0400
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Register Description
Port E Data Register (PEDR)
Bit Name
PE15DT
PE14DT
PE13DT
PE12DT
PE11DT
PE10DT
PE9DT
PE8DT
PE7DT
PE6DT
PE5DT
PE4DT
PE3DT
PE2DT
PE1DT
PE0DT
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
Bits PE15DT to PE0DT correspond to pins PTE15 to
PTE0. When the pin function is general output port, the
value of the corresponding PEDR bit in PEDR is
returned directly by reading the port. When the function
is general input port, the corresponding pin level is read
by reading the port. Table 23.5 shows the function of
PEDR.