DS3172 Maxim Integrated, DS3172 Datasheet - Page 18

• Manufacturer Part Number: DS3172
• Description: Network Controller & Processor ICs Dual DS3/E3 Single Chip Transceiver
• Manufacturer: Maxim Integrated

Specifications of DS3172

• Part # Aliases: 90-31720-000

6 MAJOR OPERATIONAL MODES
The major operational modes are determined by the FM[2:0] framer mode bits and a few other control bits. Unused
features are powered down and the data paths are held in reset. The configuration registers of the unused features
can be written to and read from. The function of some IO pins change in different operational modes. The line
interface operational mode is determined by the LM[2:0] bits.
6.1 DS3/E3 SCT Mode
This mode is for standard operation that uses the device in the single chip transceiver mode. It utilizes the
framer/formatter as well as the transmit/receive LIU.
FRAME MODE
DS3 C-bit Framed
DS3 M23 Framed
E3 G.751 Framed
E3 G.832 Framed
LIU MODE
JA Off, B3ZS or HDB3
JA RX, B3ZS or HDB3
JA TX, B3ZS or HDB3
JA Off, AMI
JA RX, AMI
JA TX, AMI
FM[2:0]
LM[2:0]
000
001
010
011
001
010
011
001
010
011
TZSD & RZSD
0
0
0
1
1
1
18
TLEN
PORT.CR2
0
0
0
0
0
0