DS2155LN Maxim Integrated Products, DS2155LN Datasheet - Page 105

IC TXRX T1/E1/J1 1-CHIP 100-LQFP

DS2155LN

Manufacturer Part Number
DS2155LN
Description
IC TXRX T1/E1/J1 1-CHIP 100-LQFP
Manufacturer
Maxim Integrated Products
Datasheets

Specifications of DS2155LN

Function
Single-Chip Transceiver
Interface
E1, HDLC, J1, T1
Number Of Circuits
1
Voltage - Supply
3.14 V ~ 3.47 V
Current - Supply
75mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
100-LQFP
Includes
BERT Generator and Detector, CMI Coder and Decoder, HDLC Controller
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Power (watts)
-

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Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bit 0/Receive Elastic Store Enable (RESE)
Bit 1/Receive Elastic Store Minimum-Delay Mode (RESMDM). See Section
Bit 2/Receive Elastic Store Reset (RESR). Setting this bit from a 0 to a 1 forces the read and write pointers into
opposite frames, maximizing the delay through the receive elastic store. It should be toggled after RSYSCLK has
been applied and is stable. See Section
Bit 3/Receive Elastic Store Align (RESALGN). Setting this bit from a 0 to a 1 forces the receive elastic store’s
write/read pointers to a minimum separation of half a frame. No action is taken if the pointer separation is already
greater or equal to half a frame. If pointer separation is less than half a frame, the command is executed and the
data is disrupted. It should be toggled after RSYSCLK has been applied and is stable. Must be cleared and set again
for a subsequent align. See Section
Bit 4/Transmit Elastic Store Enable (TESE)
Bit 5/Transmit Elastic Store Minimum-Delay Mode (TESMDM). See Section
Bit 6/Transmit Elastic Store Reset (TESR). Setting this bit from a 0 to a 1 forces the read and write pointers into
opposite frames, maximizing the delay through the transmit elastic store. Transmit data is lost during the reset. It
should be toggled after TSYSCLK has been applied and is stable. See Section
set HIGH.
Bit 7/Transmit Elastic Store Align (TESALGN). Setting this bit from a 0 to a 1 forces the transmit elastic store’s
write/read pointers to a minimum separation of half a frame. No action is taken if the pointer separation is already
greater or equal to half a frame. If pointer separation is less than half a frame, the command is executed and the
data is disrupted. It should be toggled after TSYSCLK has been applied and is stable. It must be cleared and set
again for a subsequent align. See Section
0 = elastic store is bypassed
1 = elastic store is enabled
0 = elastic stores operate at full two-frame depth
1 = elastic stores operate at 32-bit depth
0 = elastic store is bypassed
1 = elastic store is enabled
0 = elastic stores operate at full two-frame depth
1 = elastic stores operate at 32-bit depth
TESALGN
7
0
ESCR
Elastic Store Control Register
4Fh
TESR
6
0
TESMDM
19.3
19.3
5
0
for details.
19.3
for details. Do not leave this bit set HIGH.
for details.
TESE
4
0
105 of 238
RESALGN
3
0
RESR
2
0
19.3
19.4
19.4
RESMDM
for details. Do not leave this bit
for details.
for details.
1
0
RESE
0
0

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