DS33R41 Maxim Integrated Products, DS33R41 Datasheet - Page 85

• Manufacturer Part Number: DS33R41
• Description: Network Controller & Processor ICs Inverse-Multiplexing Ethernet Mapper wit
• Manufacturer: Maxim Integrated Products

10.10.1 Idle-Code Programming Examples
Example 1
Sets transmit channel 3 idle code to 7Eh.
Write TR.IAAR = 02h
Write TR.PCICR = 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 TR.IAAR = 02h
Write TR.PCICR = 7Eh
Write TR.PCICR = 7Eh
Write TR.PCICR = 7Eh
Write TR.PCICR = 7Eh
Write TR.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 TR.IAAR = 02h
Write TR.PCICR = 7Eh
Write TR.PCICR = EEh
Write TR.PCICR = FFh
Write TR.PCICR = 7Eh
Example 4
Sets all transmit idle codes to 7Eh.
Write TR.IAAR = 4xh
Write TR.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 TR.IAAR = Cxh
Write TR.PCICR = 7Eh
Write TR.TCICE1 = FEh ;enable idle code substitution for transmit channels 2 through 8
Write TR.TCICE2 = FFh ;enable idle code substitution for transmit channels 9 through 16
Write TR.TCICE3 = FEh ;enable idle code substitution for transmit channels 18 through 24
Write TR.TCICE4 = FFh ;enable idle code substitution for transmit channels 25 through 32
Write TR.RCICE1 = FEh ;enable idle code substitution for receive channels 2 through 8
Write TR.RCICE2 = FFh ;enable idle code substitution for receive channels 9 through 16
Write TR.RCICE3 = FEh ;enable idle code substitution for receive channels 18 through 24
Write TR.RCICE4 = FFh ;enable idle code substitution for receive channels 25 through 32
The transmit-channel idle-code enable registers (TR.TCICE1/2/3/4) are used to determine which of the 24 T1 or 32
E1 channels from the backplane to the T1 or E1 line should be overwritten with the code placed in the per-channel
code array.
The receive-channel idle-code enable registers (TR.RCICE1/2/3/4) are used to determine which of the 24 T1 or 32
E1 channels from the backplane to the T1 or E1 line should be overwritten with the code placed in the per-channel
code array.
;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 block write to all transmit and receive positions in the array
;7Eh is idle code
;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
;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
85 of 335