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1
(5) Host interface pins
QQ
3 7 63 1515 0
(a) Parallel interface pins
No.
Pin Name
A
117
CS
119
RWZ
120
IOR
123
IOCHRDY
116-107
AD [ 10 : 1]
143-141, 139-132,
B
130-128, 126, 125 P_D [15 : 0]
(b) Serial interface pins
No.
Pin Name
149
TXD
150
RXD
(c) Others
No.
Pin Name
124
INT
C
106, 105
PSSEL [1 : 0]
TE
L 13942296513
D
E
www
F
120
1
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2
I/O
I
Chip select input of parallel interface
Read and write control input of parallel interface
I
ISA type bus, SH-1 bus: Write strobe
68000 bus : Read/write selection signal
IO read control input of parallel interface
I
ISA type bus, SH-1 bus : Read strobe
68000 bus : Data strobe (DS)
O
Ready output of parallel interface
I
Address input of parallel interface
I/O
Data input/output of parallel interface
I/O
I/O
Serial transmission data output of unsynchronous serial interface (UART)
I/O
Serial transmission data input of unsynchronous serial interface (UART)
I/O
O
Interrupt output to the outside
Parallel/serial interface selection
Input signal to select the outside interface which of parallel interface or serial interface.
PSSEL [1 : 0]
00
I
01
10
11
x
ao
y
.
i
DVR-3100-S
2
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3
8
Function
Function
Function
Select
Serial interface (UART)
Parallel interface (ISA type bus)
Q Q
3
6 7
1 3
Parallel interface (68000 bus)
Parallel interface (SH-1 bus)
u163
.
3
4
2 9
9 4
2 8
Active
Active
Active
1 5
0 5
8
2 9
9 4
m
co
4
9 9
L
L
L
L
−
−
−
−
H
−
2 8
9 9
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