SH7018 Datasheet, PDF (305/431 Pages) Renesas Technology Corp – SuperH™ RISC engine

Port B Control Register 1 (PBCR1)
Bit: 15
14
13
12
11
10
9
8
—
—
—
—
—
—
—
—
Initial value:
0
0
0
0
0
0
0
0
R/W: R
R
R
R
R
R
R
R
Bit:
7
6
5
4
3
2
1
0
—
—
—
— PB9MD1 PB9MD0 PB8MD1 PB8MD0
Initial value:
0
0
0
0
0
0
0
0
R/W: R
R
R
R
R/W
R/W
R/W
R/W
Bits 15 to 4—Reserved: These bits are always read as 0. The write value should always be 0.
Bits 3 and 2—PB9 Mode 1 and 0 (PB9MD1, PB9MD0): These bits 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)
Interrupt request input (IRQ7)
Address output (A21)
Reserved
(Initial value)
Bits 1 and 0—PB8 Mode 1 and 0 (PB8MD1, PB8MD0): These bits 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)
Interrupt request input (IRQ6)
Address output (A20)
Wait state request input (WAIT)
(Initial value)
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