1 port a control register (pacr) – Renesas SH7641 User Manual
Page 874
Section 22 Pin Function Controller (PFC)
Rev. 4.00 Sep. 14, 2005 Page 824 of 982
REJ09B0023-0400
22.1.1
Port A Control Register (PACR)
PACR is a 32-bit readable/writable register that selects the pin functions. PACR is initialized to
H'00000000 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
All
0
R
Reserved
These bits are always read as 0. The write value should
always be 0.
29
28
PA14MD2
PA14MD1
0
0
R/W
R/W
27
26
PA13MD2
PA13MD1
0
0
R/W
R/W
25
24
PA12MD2
PA12MD1
0
0
R/W
R/W
23
22
PA11MD2
PA11MD1
0
0
R/W
R/W
21
20
PA10MD2
PA10MD1
0
0
R/W
R/W
19
18
PA9MD2
PA9MD1
0
0
R/W
R/W
17
16
PA8MD2
PA8MD1
0
0
R/W
R/W
15
14
PA7MD2
PA7MD1
0
0
R/W
R/W
13
12
PA6MD2
PA6MD1
0
0
R/W
R/W
11
10
PA5MD2
PA5MD1
0
0
R/W
R/W
9
8
PA4MD2
PA4MD1
0
0
R/W
R/W
PAn Mode 2 and 1
The combination of bits PAnMD2 and PAnMD1 (n = 0
to 14) controls the pin functions.
00: Port input
01: Port output
10: Reserved (When set, correct operation cannot be
guaranteed.)
11: Other functions (see table 22.1.)