
652
19.3
Port B
Port B is a 10-pin input/output port as listed in table 19.5.
Table 19.5
Port B
ROM Disabled Extended
Mode (Modes 0, 1)
ROM Enabled Extended
Mode (Mode 2)
Single Chip Mode
PB9 (I/O)/
IRQ7
(input)/A21
(output)/
ADTRG
(input)
PB9 (I/O)/
IRQ7
(input)/A21
(output)/
ADTRG
(input)
PB9 (I/O)/
IRQ7
(input)/
ADTRG
(input)
PB8 (I/O)/
IRQ6
(input)/A20
(output)/
WAIT
(input)
PB8 (I/O)/
IRQ6
(input)/A20
(output)/
WAIT
(input)
PB8 (I/O)/
IRQ6
(input)
PB7 (I/O)/
IRQ5
(input)/A19
(output)/
BREQ
(input)
PB7 (I/O)/
IRQ5
(input)/A19
(output)/
BREQ
(input)
PB7 (I/O)/
IRQ5
(input)
PB6 (I/O)/
IRQ4
(input)/A18
(output)/
BACK
(output)
PB6 (I/O)/
IRQ4
(input)/A18
(output)/
BACK
(input)
PB6 (I/O)/
IRQ4
(input)
PB5 (I/O)/
IRQ3
(input)/
POE3
(input)/RDWR (output)
PB5 (I/O)/
IRQ3
(input)/
POE3
(input)/RDWR (output)
PB5 (I/O)/
IRQ3
(input)/
POE3
(input)
PB4 (I/O)/
IRQ2
(input)/
POE2
(input)/
CASH
(output)
PB4 (I/O)/
IRQ2
(input)/
POE2
(input)/
CASH
(output)
PB4 (I/O)/
IRQ2
(input)/
POE2
(input)
PB3 (I/O)/
IRQ1
(input)/
POE1
(input)/
CASL
(output)
PB3 (I/O)/
IRQ1
(input)/
POE1
(input)/
CASL
(output)
PB3 (I/O)/
IRQ1
(input)/
POE1
(input)
PB2 (I/O)/
IRQ0
(input)/
POE0
(input)/
RAS
(output)
PB2 (I/O)/
IRQ0
(input)/
POE0
(input)/
RAS
(output)
PB2 (I/O)/
IRQ0
(input)/
POE0
(input)
A17 (output)
PB1 (I/O)/A17 (output)
PB1 (I/O)
A16 (output)
PB0 (I/O)/A16 (output)
PB0 (I/O)
19.3.1
Register Configuration
Table 19.6 summarizes the port B register.
Table 19.6
Port B Register
Name
Abbreviation
R/W
Initial Value
Address
Access Size
Port B data register
PBDR
R/W
H'0000
H'FFFF8390
H'FFFF8391
8, 16, 32
Summary of Contents for SH7041 Series
Page 2: ......
Page 6: ......
Page 38: ...xvi ...
Page 44: ...6 ...
Page 46: ...8 ...
Page 48: ...10 ...
Page 82: ...44 ...
Page 114: ...76 ...
Page 118: ...80 ...
Page 124: ...86 ...
Page 170: ...132 ...
Page 250: ...212 ...
Page 492: ...454 ...
Page 506: ...468 ...
Page 604: ...566 ...
Page 684: ...646 ...
Page 706: ...668 ...
Page 778: ...740 ...
Page 780: ...742 ...
Page 818: ...780 ...
Page 850: ...812 ...
Page 923: ...SH7040 SH7041 SH7042 SH7043 SH7044 SH7045 Group Hardware Manual REJ09B0044 0600O ...