4-22.
IC PIN FUNCTION DESCRIPTION
IC1401
CXD2712R AUDIO DSP(DIGITAL BOARD)
Pin No.
Pin Name
I/O
1
VSS3
—
2 – 5
SOA – SOD
O
6, 7
ECJ0, ECJ1
I
8
—
NC
9
XHDWR
I
10
XHDRD
I
11
V
4
—
SS
12
V
2
—
DD
13
HRDY
O
14
XHDCS
I
15
HA0
I
16 – 20
HD0 – HD4
I/O
21
V
5
—
SS
22
V
3
—
DD
23 – 25
HD5 – HD7
I/O
26
XRST
I
27 – 30
FGP0 – FGP3
O
31
V
6
—
SS
32 – 40
ED0 – ED8
I/O
41
V
7
—
SS
42
V
4
—
DD
43 – 49
ED9 – ED15
I/O
50
TSTD
I
51
V
8
—
SS
52
V
5
—
DD
53 – 60
ED16 – ED23
I/O
61
V
9
—
SS
62 – 69
ED24 – ED31
I/O
70
XOE
O
71
V
10
—
SS
72
V
6
—
DD
73
CAS
O
74
XWE
O
75
RAS
O
76 – 80
EA0 – EA4
I/O
81
V
11
—
SS
82
V
7
—
DD
83 –89
EA5 – EA11
I/O
90
EA12
O
Ground
Serial data output
Conditional jump input terminal (7pin Connected to ground)
No connection
HCIF data write
HCIF data read
Ground
+3.3V
HCIF ready signal Open drain
HCIF chip select
HCIF address input
HCIF data input/output
Ground
+3.3V
HCIF data input/output
Reset input "L": active
Test data output
Ground
External RAM data input/output
Ground
+3.3V
External RAM data input/output
Test data input "L" = normal "H" = test (Connected to ground)
Ground
+3.3V
External RAM data input/output
Ground
External RAM data input/output
External RAM output enable
Ground
+3.3V
External RAM column address strobe (Not used)
External RAM write enable (Not used)
External RAM raw address strobe
External RAM address output/test data input
Ground
+3.3V
External RAM address output/test data input
External RAM address output
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Description