SH7040 Datasheet, PDF (657/923 Pages) Renesas Technology Corp – Renesas 32-Bit Single-Chip RISC Microprocessor SuperH RISC engine Family/SH7040 Series(CPU Core SH-2)

• Bits 1 and 0—PB8 Mode (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
R
R/W
R
R/W
• Bits 15 and 14—PB7 Mode (PB7MD1 and PB7MD0): PB7MD1 and PB7MD0 select the
function of the PB7/IRQ5/A19/BREQ pin.
Bit 15:
PB7MD1
0
1
Bit 14:
PB7MD0
0
1
0
1
Description
General input/output (PB7) (initial value)
Interrupt request input (IRQ5)
Address output (A19) (PB7 in single chip mode)
Bus right request input (BREQ) (PB7 in single chip mode)
619