2.0 Pin Descriptions
RS8953B/8953SPB
2.1 Pin Assignments
HDSL Channel Unit
Table 2-1. Pin Assignments (2 of 2)
80-Pin
PQFP
68-Pin
PLCC
68-Pin
PLCC
Signal
I/O
80-Pin PQFP
Signal
I/O
3
5
10
11
12
13
14
15
16
17
18
RDAT1
AD[0]
AD[1]
AD[2]
AD[3]
AD[4]
AD[5]
AD[6]
AD[7]
I
32
46
47
48
49
50
51
52
53
36
46
47
48
49
50
51
52
53
TDI
PLLAGND
PLLDGND
PLLVCC
I
GND
GND
VCC
VCC
I
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
6
7
8
VCC(SCAN_MD)
ALE
9
10
11
12
WR*
I
TLOAD1
O
TLOAD2(1)
O
TLOAD3(1)
TAUX1
13
19
VCC
VCC
54
54
O
15
16
20
21
EXCLK
I
I
55
56
55
56
I
I
TAUX2(1)
TAUX3(1)
INSDAT
INSERT/RAUX2(2)
INTR*
17
18
22
23
O
O
57
58
57
58
I
MSYNC/RAUX3(2)
SCLK
O
19
20
24
25
TMSYNC
RMSYNC
I
59
60
59
60
O
O
TDAT3(1)
VCC
O
21, 22
23
26
27
GND
VCC
GND
VCC
63
64
61
62
VCC
O
ROH3(1)
RDAT3(1)
24
25
28
29
MPUSEL
TCLK
I
I
65
66
63
64
I
I
BCLK3(1)
26
27
30
31
RCLK
TSER
O
I
67
68
65
66
GND(SCAN_EN)
GND
I
QCLK3(1)
ROH2(1)
28
29
30
32
33
34
RSER
RD*
O
I
69
70
67
68
—
O
I
QCLK2(1)
NC
RST*
I
2, 4, 14, 34,
38, 42, 44, 61,
62, 74
—
31
35
TCK
I
—
—
—
—
NOTE(S):
(1)
These pins do not perform the functions in RS8953SPBEPF and RS8953SPBEPJ.
These pins are only functional in RS8953SPBEPF and RS8953SPBEPJ when RAUX_EN is not active (RAUX_EN = 0).
(2)
2-6
Conexant
N8953BDSB
CONEXANT [ CONEXANT SYSTEMS, INC ]
