DS21458LDK Maxim Integrated, DS21458LDK Datasheet - Page 109

• Manufacturer Part Number: DS21458LDK
• Description: Network Controller & Processor ICs
• Manufacturer: Maxim Integrated

18.1 Idle Code Programming Examples
The following example sets transmit channel 3 idle code to 7Eh:
Write IAAR = 02h
Write PCICR = 7Eh
The following example 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
The following example 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
The following example sets all transmit idle codes to 7Eh:
Write IAAR = 40h
Write PCICR = 7Eh
The following example sets all receive and transmit idle codes to 7Eh and enables idle code substitution
in all E1 transmit and receive channels:
Write IAAR = C0h
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
;set idle code to 7Eh
;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
;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
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DS21455/DS21458 Quad T1/E1/J1 Transceivers