28953-SWG-001-A_15 Datasheet, PDF (117/183 Pages) M/A-COM Technology Solutions, Inc. – Application and Channel Unit Software

RS8953B
Application and Channel Unit Software Developer’s Guide
8.0 API Command Set
8.2 Level 2 API Commands
8.2.8.7 Set EOC Address Destination
For the HTU-C, this command selects the destination of the EOC command or message. The
command or message can be routed to either the repeater or HTU-R.
Table 8-68. Opcode 0x3B (_EOC_ADD_DEST)
Destination
Description
Parameter
_DSL_CHANNEL0–2
Sets where command is sent. Defaults to HTU-R. 0–Send to Repeater
1–Send to HTU-R
8.2.8.8 Insert CRC Errors
This command continuously injects CRC-6 errors by inverting the CRC 6-bit calculation. Errors
continue every 6 ms HDSL frame until the command is disabled. This is used to test far-end CRC
detection capabilities.
Table 8-69. Opcode: 0x3C (_INSERT_CRC6)
Destination
Description
_DSL_CHANNEL0-2
Enables CRC6 errors to be sent to the far-end.
Parameter
0–disable CRC errors
1–enable CRC errors
8.2.8.9 EOC Query Received New Data
This command is used to determine when either the HTU-C or HTU-R has received an EOC
read/write message from the far-end. The flags are then cleared after the status is returned. This
command does not return the contents of the EOC rd/wrRegData buffer.
For the HTU-C, these flags should be queried after an EOC Read Register command is sent and
before another EOC Read Register command of the same register is sent.
For the HTU-R, this command checks for updated wrRegData from the HTU-C.
When a newDataFlag bit is set, the host processor can read the EOC register contents by using
the EOC Read Register command.
The register is cleared after _EOC_RCVD_NEWDATA_STATUS is queried.
Table 8-70. Opcode: 0x86 (_EOC_RCVD_NEWDATA_STATUS)
Destination
Description
_DSL_CHANNEL0–2
Return the received new data status then clears the
register.
Parameter
0–Request Lo Byte
1–Request Hi Byte
Lo Byte 0
High Byte 1
Bit7
Reg 7
Reg F
Bit6
Reg 6
Reg E
Return Status Bit Definitions
Bit5
Bit4
Bit3
Bit2
Reg 5
Reg 4
Reg 3
Reg 2
Reg D
Reg C
Reg B
Reg A
Bit1
Reg 1
Reg 9
Bit0
Reg 0
Reg 8
The newDataFlags is a 16-bit variable. A parameter of 0x00 returns and clears the lower 8-bits
of the variable. The parameter of 0x01 returns and clears the upper 8-bits of the 16-bit variable.
100418C
Conexant
8-27