AR-11627 Datasheet, PDF (11/24 Pages) Conexant Systems, Inc – AccessRunner ADSL Modem Device Set for PCI Applications

Controller-less ADSL Modem Device Set for PCI Applications
AccessRunner
Pin Name
I/O
AFE ANALOG-to-DIGITAL INTERFACE
RX[15:0]
I
ADC_CLK
O
CLIP#
O
AFE DIGITAL-to-ANALOG INTERFACE
TX[15:0]
O
DAC_CLK
O
FILTER_CLK
O
AFE_STR#
I
DIGITAL INTERFACE (DI)
TLXCK_EN
I
T_CLK_LS0
I/O
T_CLK_LS1
I/O
T_DAT_LS0
I
T_DAT_LS1
I
R_CLK_LS0
I
R_CLK_LS1
I
R_DAT_LS0
O
R_DAT_LS1
O
R_CLK_AS0
I
R_CLK_AS1
I
R_DAT_AS0
O
R_DAT_AS1
O
R_NCO_LS0
O
R_NCO_LS1
O
R_NCO_AS0
O
R_NCO_AS1
O
BIT_CLOCK
O
T_FAST_BYTE#
O
T_INTER_BYTE#
O
R_FAST_FRAME#
O
R_FAST_SUPER#
O
Doc. No. 100394B
October 19, 1999
Table 4. 11627 Pin Signals by Group
Description
Receive Data Lines
In the parallel mode of operation, data is clocked by the signal ADC_CLK using the full
data bus. In the serial mode of operation, a strobe signal (AFE_STR#) from the AFE
shall trigger the transfer of data over a programmable width serial bus.
Receive Clock for Parallel Mode
Clip Interrupt
This signal is used for monitoring incoming data for saturation. Goes low for one clock
(ADC_CLK) cycle whenever clipping is detected.
Transmit Data Lines
In the parallel mode of operation, data is clocked by the signal DAC_CLK using the full
data bus. In the serial mode of operation, a strobe signal (AFE_STR#) from the AFE
shall trigger the transfer of data over a programmable width serial bus.
Transmit Clock for Parallel Mode
AFE Filter Clock
This signal is used by the DAC interface block to strobe the external AFE filters.
AFE Strobe Signal
LSX Transmit Data Clock Generation Enable
Transmit Data Clock (LS0)
Transmit Data Clock (LS1)
Transmit Data (LS0)
Transmit Data (LS1)
Receive Data Clock (LS0)
Receive Data Clock (LS1)
Receive Data (LS0)
Receive Data (LS1)
Receive Data Clock (AS0)
Receive Data Clock (AS1)
Receive Data (AS0)
Receive Data (AS1)
Receive LS0 NCO Output
Receive LS1 NCO Output
Receive AS0 NCO Output
Receive AS1 NCO Output
Serial Data Bit Clock Output
Used to synchronize the serial input and output data bit streams, enables, and
superframe qualifiers.
Transmit Fast Data Bit Input Enable
Transmit Interleaved Data Bit Input Enable
Receive Fast Data Bit Output Frame Qualifier
Receive Fast Data Bit Output Superframe Qualifier
Conexant
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