SH7014 Datasheet, PDF (488/754 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

16. Pin Function Controller (PFC)
Bits 15 to 4⎯Reserved: These bits always read as 0. The write value should always be 0.
Bits 3 and 2⎯PB9 Mode 1, 0 (PB9MD1 and PB9MD0): PB9MD1 and PB9MD0 select the
function of the PB9/IRQ7/A21 pin.
Bit 3
PB9MD1
0
1
Bit 2
PB9MD0
0
1
0
1
Description
General input/output (PB9)
(initial value)
Interrupt request input (IRQ7)
Address output (A21) (PB9 in single-chip mode)
Reserved
Bits 1 and 0⎯PB8 Mode 1, 0 (PB8MD1 and PB8MD0): PB8MD1 and PB8MD0 select the
function of the PB8/IRQ6/A20/WAIT pin.
Bit 1
PB8MD1
0
1
Bit 0
PB8MD0
0
1
0
1
Description
General input/output (PB8)
(initial value)
Interrupt request input (IRQ6)
Address output (A20) (PB8 in single-chip mode)
Wait state request input (WAIT)
(PB8 in single-chip mode)
Port B Control Register 2 (PBCR2):
Bit: 15
14
13
12
11
10
9
8
PB7MD1 PB7MD0 PB6MD1 PB6MD0 PB5MD1 PB5MD0 PB4MD1 PB4MD0
Initial value: 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
Bit: 7
6
5
4
3
2
1
0
PB3MD1 PB3MD0 PB2MD1 PB2MD0 ⎯ PB1MD ⎯ PB0MD
Initial value: 0
0
0
0
0
0
0
0
R/W: R/W R/W R/W R/W
Note: * R only in the SH7014.
R
R/W*
R
R/W*
Rev.5.00 Sep. 27, 2007 Page 454 of 716
REJ09B0398-0500