lxt384 Intel Corporation, lxt384 Datasheet - Page 19

• Manufacturer Part Number: lxt384
• Description: Octal T1/e1/j1 Short Haul Transceiver
• Manufacturer: Intel Corporation

4.2
Document Number: 248994
Revision Number: 004
Revision Date: September 22, 2005
Table 5.
Note: For a description of operating in bipolar or unipolar mode, see
Framer/Mapper I/O Pins
Depending on the state of a UBS7:0 pin, both the corresponding receiver and transmitter pins are
automatically set for either bipolar I/O or unipolar I/O. When a UBS pin is connected:
Operation - Receive Side” on page 25
Transmit Side” on page
Table 5
on the I/O mode selected.
Receiver Bipolar/Unipolar I/O Signal Functions
•
•
Pins
141
105
112
142
104
143
103
110
111
69
76
34
41
70
77
33
40
71
78
32
39
4
5
6
Low, bipolar I/O is selected.
High for more than 16 consecutive MCLK clock cycles, unipolar I/O is selected.
lists LXT384 Transceiver receiver pins that have different names and functions depending
Balls
M12
M13
M14
C12
A12
P12
C13
A13
P13
C14
A14
P14
M3
M2
M1
A3
C3
P3
A2
C2
P2
A1
C1
P1
RNEG7
RNEG6
RNEG5
RNEG4
RNEG3
RNEG2
RNEG1
RNEG0
RPOS7
RPOS6
RPOS5
RPOS4
RPOS3
RPOS2
RPOS1
RPOS0
RCLK7
RCLK6
RCLK5
RCLK4
RCLK3
RCLK2
RCLK1
RCLK0
Bipolar I/O Signal Functions
26.
Receive negative data
output
Receive positive data
output
Receive clock output
Intel
and
®
Section 5.3.2, “Bipolar vs. Unipolar Operation -
LXT384 Octal T1/E1/J1 S/H PCM Transceiver with JA
BPV7
BPV6
BPV5
BPV4
BPV3
BPV2
BPV1
BPV0
RDATA7
RDATA6
RDATA5
RDATA4
RDATA3
RDATA2
RDATA1
RDATA0
RCLK7
RCLK6
RCLK5
RCLK4
RCLK3
RCLK2
RCLK1
RCLK0
Unipolar I/O Signal Functions
Section 5.3.1, “Bipolar vs. Unipolar
Detect bipolar violations output
Receive data output
Receive clock output
19