4 port d control register (pdcr) – Renesas SH7641 User Manual
Page 878
Section 22 Pin Function Controller (PFC)
Rev. 4.00 Sep. 14, 2005 Page 828 of 982
REJ09B0023-0400
Bit Bit
Name
Initial
Value R/W
Description
7
6
PC3MD2
PC3MD1
0
0
R/W
R/W
5
4
PC2MD2
PC2MD1
0
0
R/W
R/W
3
2
PC1MD2
PC1MD1
0
0
R/W
R/W
1
0
PC0MD2
PC0MD1
0
0
R/W
R/W
PCn Mode 2 and 1
The combination of bits PCnMD2 and PCnMD1 (n = 0
to 15) controls the pin functions.
00: Port input
01: Port output
10: Reserved (When set, correct operation cannot be
guaranteed.)
11: Other functions (see table22.1.)
22.1.4
Port D Control Register (PDCR)
PDCR is a 32-bit readable/writable register that selects the pin functions. PDCR is initialized to
H'00000000 (MD3 = 0, 16-bit bus width) or H'FFFFFFFF (MD3 = 1, 32-bit bus width) by a
power-on reset, and it is not initialized by a manual reset, in standby mode, or in sleep mode.
Bit Bit
Name
Initial
Value R/W
Description
31
30
PD15MD2
PD15MD1
0/1
0/1
R/W
R/W
29
28
PD14MD2
PD14MD1
0/1
0/1
R/W
R/W
27
26
PD13MD2
PD13MD1
0/1
0/1
R/W
R/W
25
24
PD12MD2
PD12MD1
0/1
0/1
R/W
R/W
23
22
PD11MD2
PD11MD1
0/1
0/1
R/W
R/W
21
20
PD10MD2
PD10MD1
0/1
0/1
R/W
R/W
19
18
PD9MD2
PD9MD1
0/1
0/1
R/W
R/W
PDn Mode 2 and 1
The combination of bits PDnMD2 and PDnMD1 (n = 0
to 15) controls the pin functions.
00: Port input
01: Port output
10: Reserved (When set, correct operation cannot be
guaranteed.)
11: Other functions (see table22.1.)