lxt351 Intel Corporation, lxt351 Datasheet - Page 9

• Manufacturer Part Number: lxt351
• Description: T1/e1 Short Haul Transceiver With Crystal-less Jitter Attenuation
• Manufacturer: Intel Corporation

1.1
Datasheet
PLCC
1. Data pins change based on whether external data or internal QRSS mode is active.
PLCC
12
17
18
23
24
5
9
13
16
19
20
Table 1. LXT351 Clock and Data Pin Assignments by Mode
1
2
3
4
6
7
8
Table 2. LXT351 Processor Interface Pins
Pin #
Pin #
QFP
13
20
21
31
32
2
7
QFP
39
41
42
43
15
19
24
25
3
4
5
Mode Dependent Signals
As shown in
according to the selected mode(s) of operation. These pins, associated signal names, and operating
modes are summarized in
Intel
ALE
WR
RD
Address/Data Bus Type
Bipolar Mode
T1/E1 Short Haul Transceiver with Crystal-less Jitter Attenuation — LXT351
TNEG
RNEG
RPOS
TPOS
Figure
External Data Modes
AD0
AD1
INT
CS
2, the LXT351 has several pins that change function (and signal name)
Motorola
Table 1
R/W
DS
AS
Unipolar Mode
and
INSBPV
RDATA
TDATA
BPV
Table
PLCC
25
26
27
28
10
11
-
Pin #
2. LXT351 signals are described in
TRING
RRING
MCLK
TCLK
RCLK
RTIP
TTIP
QFP
35
36
37
38
10
9
-
Bipolar Mode
RNEG
RPOS
1
Intel
Address/Data Bus Type
QRSS Modes
INSLER
INSBPV
AD2
AD3
AD4
AD5
AD6
AD7
-
Unipolar Mode
Motorola
Table
RDATA
BPV
3.
9