CS62180B
T1 Framer
Features
General Description
The CS62180B is a monolithic CMOS device
which encodes and decodes T1 framing formats.
The device supports bit-seven and B8ZS zero suppres-
sion, and bit-robbed signaling. Clear channel mode can
be selected on a per channel basis.
The serial interface has been enhanced to allow
the CS62180B to share a chip select signal and
register address space with the CS61535A,
CS61574A, and CS61575 Line Interface Units.
•
Monolithic T1 Framing Device
•
CS62180B Supports SF(D4
®
), T1DM,
ESF and SLC-96® Framing Formats
•
CS62180B Contains Updated AIS and
Carrier Loss Detection Criteria
Applications
•
•
T1 Line Cards
ISDN Primary Rate Line Cards
•
CS62180B is Pin Compatible with
DS2180A, and DS2180
Ordering Information:
CS62180B-IL 44 Pin PLCC
-40 to 85
°C
TMSYNC
TFSYNC
1
2
3
TCLK
Transmit Timing
TLCLK
11
TSER TABCD
5
9
7
6
4
8
12
Bipolar
13
Coder
TSIGSEL
TMO
TCHCLK
TSIGFR
TPOS
TNEG
CRC
TLINK
10
F-Bit Data
Yellow Alarm
Data
Selector
Transmitter
INT
CS
SCLK
SDI
SDO
SPS
14
17
18
15
16
19
Serial
Interface
Registers
40
20
VDD
VSS
33
32 RST
TEST
Control
Receive Sync
Controller
RSER
RABCD
RLINK
RLCLK
RSIGFR
RSIGSEL
RCHCLK
26
29
22
Data
DeMUX
Code Gen.
23
30
31
25
Receive
Timing
Alarm
Detect
CRC
39
37
36
Bipolar 34
Decoder 35
38
24
RLOS
RBV
RCL
RPOS
RNEG
RFER
RCLK
Synchronizer
21
28
27
Receiver
RMSYNC RFSYNC
RYEL RBL (CS2180B-IL only)
Cirrus Logic, Inc.
www.cirrus.com
Copyright
©
Cirrus Logic, Inc 2003
(All Rights Reserved)
DEC '03
DS225PP2
1
CIRRUS [ CIRRUS LOGIC ]
