RS8953 Conexant Systems, Inc., RS8953 Datasheet - Page 28

• Manufacturer Part Number: RS8953
• Description: High-bit-rate Digital Subscriber Line (hdsl) Channel unit
• Manufacturer: Conexant Systems, Inc.

2.0 Pin Descriptions
2.1 Pin Assignments
Table 2-1. Pin Assignments (2 of 2)
2-6
NOTE(S):
(1)
(2)
80-Pin
21, 22
PQFP
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).
10
11
12
13
15
16
17
18
19
20
23
24
25
26
27
28
29
30
31
3
5
6
7
8
9
68-Pin
PLCC
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
INSERT/RAUX2
RMSYNC
TMSYNC
MPUSEL
INSDAT
Signal
RDAT1
EXCLK
INTR*
AD[0]
AD[1]
AD[2]
AD[3]
AD[4]
AD[5]
AD[6]
AD[7]
RCLK
RSER
TCLK
TSER
RST*
GND
RD*
VCC
VCC
TCK
(2)
GND
VCC
VCC
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
Conexant
38, 42, 44, 61,
80-Pin PQFP
2, 4, 14, 34,
62, 74
32
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
63
64
65
66
67
68
69
70
—
68-Pin
PLCC
36
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
—
—
MSYNC/RAUX3
VCC(SCAN_MD)
GND(SCAN_EN)
TLOAD2
TLOAD3
RS8953B/8953SPB
PLLDGND
PLLAGND
TAUX2
TAUX3
RDAT3
BCLK3
QCLK3
QCLK2
TDAT3
TLOAD1
ROH3
ROH2
PLLVCC
Signal
TAUX1
SCLK
WR*
VCC
ALE
TDI
NC
HDSL Channel Unit
—
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
N8953BDSB
GND
GND
GND
VCC
VCC
VCC
I/O
—
—
O
O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I