SH7764 Datasheet, PDF (1405/1752 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Register name
Pin select register I
Pin select register J
Pin select register K
Pin select register P
Pin select register R
Pin select register S
Hi-Z register A
Hi-Z register B
Special select register
Section 27 General Purpose I/O (GPIO)
Abbreviation
PTSEL_I
PTSEL_J
PTSEL_K
PTSEL_P
PTSEL_R
PTSEL_S
PTHIZ_A
PTHIZ_B
PTSEL_SPCL
Power-on
Reset
H'0000
H'0000
H'0000
H'0000
H'0000
H'0000
H'0000
H'0000
H'0000
Sleep
Retained
Retained
Retained
Retained
Retained
Retained
Retained
Retained
Retained
Standby
Retained
Retained
Retained
Retained
Retained
Retained
Retained
Retained
Retained
27.2.1 Port A Control Register (PTIO_A)
PTIO_A is a 16-bit readable/writable register that controls each pin function and input pull-up
MOS.
Bit: 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
PTIO_A7[1:0] PTIO_A6[1:0] PTIO_A5[1:0] PTIO_A4[1:0] PTIO_A3[1:0] PTIO_A2[1:0] PTIO_A1[1:0] PTIO_A0[1:0]
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
Bit
15, 14
13, 12
Bit Name
PTIO_A7[1:0]
Initial Value R/W
00
R/W
PTIO_A6[1:0] 00
R/W
Description
PTA7 Mode
00: Other functions (STATUS1 and RTS2)
01: Port output
10: Port input (Pull-up MOS: Off)
11: Port input (Pull-up MOS: On)
PTA6 Mode
00: Other functions (STATUS0 and CTS2)
01: Port output
10: Port input (Pull-up MOS: Off)
11: Port input (Pull-up MOS: On)
Rev. 1.00 Nov. 22, 2007 Page 1349 of 1692
REJ09B0360-0100