SH7730 Datasheet, PDF (1012/1188 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7780 Series

Section 29 Pin Function Controller (PFC)
Initial
Bit
Bit Name Value R/W Description
1
HIZB1
0
R/W Controls high impedance of the CAS pin
0: I/O buffer operates normally
1: Input of the I/O buffer is disabled and output is high
impedance
0
HIZB0
0
R/W Controls high impedance of the RAS pin
0: I/O buffer operates normally
1: Input of the I/O buffer is disabled and output is high
impedance
29.2.23 I/O Buffer Hi-Z Control Register C (HIZCRC)
HIZCRC is a 16-bit readable/writable register that controls high impedance states of pins on a per-
function basis.
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
—
—
—
— HIZC11 HIZC10 HIZC9 HIZC8 HIZC7 HIZC6 HIZC5 HIZC4 HIZC3 HIZC2 HIZC1 HIZC0
Initial value: 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W: R R R R 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
Bit Name
15 to 12 
11
HIZC11
10
HIZC10
Initial
Value
All 0
0
0
R/W Description
R
Reserved
These bits are always read as 0. The write value should
always be 0.
R/W Controls high impedance of the PTF3 pin
0: I/O buffer operates normally
1: Input of the I/O buffer is disabled and output is high
impedance
R/W Controls high impedance of the PTF2 pin
0: I/O buffer operates normally
1: Input of the I/O buffer is disabled and output is high
impedance
Rev. 1.00 Sep. 19, 2007 Page 964 of 1136
REJ09B0359-0100