49
DVP-NW50
• IC Pin Function Description
MAIN BOARD U1 EP9301-CQZ (CIRRUS) (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
CS7
O
Chip select signal output (not used)
2
CS6
O
FLASH MEMORY chip select signal output
3
CS3
O
Chip select signal output (not used)
4
CS2
O
Chip select signal output (not used)
5
CS1
O
Chip select signal output (not used)
6
AD25
O
Shared address bus out (not used)
7
VDD_RING
—
Power supply +3.3V
8
GND_RING
—
Ground terminal
9
AD24
O
Shared address bus out (not used)
10
SDCLK
O
SDRAM clock out
11
AD23
O
Shared address bus out
12
VDD_CORE
—
Power supply +1.8V
13
GND_CORE
—
Ground terminal
14
SDWEN
O
SDRAM write enable out
15
SDCSN3
O
SDRAM chip selects out
16
SDCSN2
O
SDRAM chip selects out (not used)
17
SDCSN1
O
SDRAM chip selects out (not used)
18
SDCSN0
O
SDRAM chip selects out (not used)
19
VDD_RING
—
Power 3.3V
20
GND_RING
—
Ground terminal
21
RASN
O
SDRAM RAS out
22
CASN
O
SDRAM CAS out
23
DQMN1
O
Shared data mask out
24
DQMN0
O
Shared data mask out
25
AD22
O
Shared address bus out
26
AD21
O
Shared address bus out
27
VDD_RING
—
Power 3.3V
28
GND_RING
—
Ground terminal
29
DA15
I/O
Shared data bus in/out
30
AD7
O
Shared address bus out
31
DA14
I/O
Shared data bus in/out
32
AD6
O
Shared address bus out
33
DA13
I/O
Shared data bus in/out
34
VDD_CORE
—
Power 1.8V
35
GND_CORE
—
Ground terminal
36
AD5
O
Shared address bus out
37
DA12
I/O
Shared data bus in/out
38
AD4
O
Shared address bus out
39
DA11
I/O
Shared data bus in/out
40
AD3
O
Shared address bus out
41
VDD_RING
—
Power 3.3V
42
GND_RING
—
Ground terminal
43
DA10
I/O
Shared data bus in/out
44
AD2
O
Shared address bus out
45
DA9
I/O
Shared data bus in/out
46
AD1
O
Shared address bus out
47
DA8
I/O
Shared data bus in/out
