Manualshelf

Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsInterface ICsInterface IC - telecommunication E1, HDLC, J1, T1 LQFP 100
919293949596979899100
DS2155
97 of 238
17.1 Idle-Code Programming Examples
Example 1
Sets transmit channel 3 idle code to 7Eh.
Write IAAR = 02h ;select channel 3 in the array
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 ;select channel 3 in the array
Write PCICR = 7Eh ;set channel 3 idle code to 7Eh
Write PCICR = 7Eh ;set channel 4 idle code to 7Eh
Write PCICR = 7Eh ;set channel 5 idle code to 7Eh
Write PCICR = 7Eh ;set channel 6 idle code to 7Eh
Write TCICE1 = 3Ch ;enable transmission of idle codes for channels 3,4,5, and 6
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 ;enable block write to all transmit and receive positions in the array
Write PCICR = 7Eh ;7Eh is idle code
Write TCICE1 = FEh ;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
Write TCICE2 = FFh ;enable idle code substitution for transmit channels 9 through 16
Write TCICE3 = FEh ;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
Write TCICE4 = FFh ;enable idle code substitution for transmit channels 25 through 32
Write RCICE1 = FEh ;enable idle code substitution for receive channels 2 through 8
Write RCICE2 = FFh ;enable idle code substitution for receive channels 9 through 16
Write RCICE3 = FEh ;enable idle code substitution for receive channels 18 through 24
Write RCICE4 = FFh ;enable idle code substitution for receive channels 25 through 32