DS3170N+ Maxim Integrated Products, DS3170N+ Datasheet - Page 184

• Manufacturer Part Number: DS3170N+
• Description: IC TXRX DS3/E3 100-CSBGA
• Manufacturer: Maxim Integrated Products

Specifications of DS3170N+

• Function: Single-Chip Transceiver
• Interface: DS3, E3
• Number Of Circuits: 1
• Voltage - Supply: 3.135 V ~ 3.465 V
• Current - Supply: 120mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 100-LBGA
• Includes: DS3 Framers, E3 Framers, HDLC Controller, On-Chip BERTs
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -

12.9.3.2 Register Bit Descriptions
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bit #
Name
Default
Bits 9 to 8: Transmit N Bit Control (TNBC[1:0]) – These two bits control the source of the N bit.
Note: If TNBC[1:0] is 10 and TABC[1:0] is 01, both the N bit and A bit will carry the same transmit FEAC controller
(one bit per frame period), however, the N bit and A bit in the same frame may or may not be equal.
Bits 3 to 2: Transmit A Bit Control (TABC[1:0]) – These two bits control the source of the A bit.
Note: If TABC[1:0] is 01 and TNBC[1:0] is 10, both the A bit and N bit will carry the same transmit FEAC controller
(one bit per frame period), however, the A bit and N bit in the same frame may or may not be equal.
Bit 1: Transmit Frame Generation Disable (TFGD) –
Bit 0: Transmit Alarm Indication Signal (TAIS) – When 0, the normal signal is transmitted. When 1, the output
E3 data stream is forced to all ones (AIS).
00 = 1
01 = transmit data from HDLC controller.
10 = transmit data from FEAC controller.
11 = 0
00 = automatically generated based upon received E3 alarms.
01 = transmit from the FEAC controller.
10 = 0
11 = 1
0 = Transmit Frame Generation is enabled
1 = Transmit Frame Generation is disabled; E3 overhead positions in the incoming E3 payload will
be passed through to error insertion. Note: The E3 overhead periods can still be overwritten by by
error insertion, overhead insertion, or AIS generation.
Reserved
15
--
0
7
0
14
--
--
0
6
0
E3G751.TCR
E3 G.751 Transmit Control Register
118h
Reserved
13
--
0
5
0
Reserved
Reserved
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12
0
4
0
Reserved
TABC1
11
0
3
0
DS3170 DS3/E3 Single-Chip Transceiver
Reserved
TABC0
10
0
2
0
TNBC1
TFGD
9
0
1
0
TNBC0
TAIS
8
0
0
0