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619
•
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
Bit 0: PB8MD0
Description
0
0
General input/output (PB8) (initial value)
1
Interrupt request input (
IRQ6
)
1
0
Address output (A20) (PB8 in single chip mode)
1
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:
76
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
Bit 14:
PB7MD0
Description
0
0
General input/output (PB7) (initial value)
1
Interrupt request input (
IRQ5
)
1
0
Address output (A19) (PB7 in single chip mode)
1
Bus right request input (
BREQ
) (PB7 in single chip mode)
Содержание SH7041 Series
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Страница 923: ...SH7040 SH7041 SH7042 SH7043 SH7044 SH7045 Group Hardware Manual REJ09B0044 0600O ...