DS2156L+ Maxim Integrated Products, DS2156L+ Datasheet - Page 104
DS2156L+
Manufacturer Part Number
DS2156L+
Description
IC TXRX T1/E1/J1 1-CHIP 100-LQFP
Manufacturer
Maxim Integrated Products
Datasheet
1.DS2156L.pdf
(265 pages)
Specifications of DS2156L+
Function
Single-Chip Transceiver
Interface
E1, J1, T1, TDM, UTOPIA II
Number Of Circuits
1
Voltage - Supply
3.14 V ~ 3.47 V
Current - Supply
75mA
Operating Temperature
0°C ~ 70°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
Lead free / RoHS Compliant
Power (watts)
-
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16.1 Idle-Code Programming Examples
Example 1
Sets transmit channel 3 idle code to 7Eh.
Write IAAR = 02h
Write PCICR = 7Eh ;set idle code to 7Eh
Example 2
Sets transmit channels 3, 4, 5, and 6 idle code to 7Eh and enables transmission of idle codes for those channels.
Write IAAR = 02h
Write PCICR = 7Eh
Write PCICR = 7Eh
Write PCICR = 7Eh
Write PCICR = 7Eh
Write TCICE1 = 3Ch
Example 3
Sets transmit channels 3, 4, 5, and 6 idle code to 7Eh, EEh, FFh, and 7Eh, respectively.
Write IAAR = 02h
Write PCICR = 7Eh
Write PCICR = EEh
Write PCICR = FFh
Write PCICR = 7Eh
Example 4
Sets all transmit idle codes to 7Eh.
Write IAAR = 4xh
Write PCICR = 7Eh
Example 5
Sets all receive and transmit idle codes to 7Eh and enables idle code substitution in all E1 transmit and receive
channels.
Write IAAR = Cxh
Write PCICR = 7Eh
Write TCICE1 = FEh
Write TCICE2 = FFh
Write TCICE3 = FEh
Write TCICE4 = FFh
Write RCICE1 = FEh
Write RCICE2 = FFh
Write RCICE3 = FEh
Write RCICE4 = FFh
;select channel 3 in the array
;enable block write to all transmit and receive positions in the array
;7Eh is idle code
;enable idle code substitution for transmit channels 2 through 8
;Although an idle code was programmed for channel 1 by the block write
;function above, enabling it for channel 1 would step on the frame
;alignment, alarms, and Sa bits
;enable idle code substitution for transmit channels 9 through 16
;enable idle code substitution for transmit channels 18 through 24
;Although an idle code was programmed for channel 17 by the block write
;function above, enabling it for channel 17 would step on the CAS frame
;alignment, and signaling information
;enable idle code substitution for transmit channels 25 through 32
;enable idle code substitution for receive channels 2 through 8
;enable idle code substitution for receive channels 9 through 16
;enable idle code substitution for receive channels 18 through 24
;enable idle code substitution for receive channels 25 through 32
;select channel 3 in the array
;set channel 3 idle code to 7Eh
;set channel 4 idle code to 7Eh
;set channel 5 idle code to 7Eh
;set channel 6 idle code to 7Eh
;enable transmission of idle codes for channels 3,4,5, and 6
104 of 265
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