Controller-less ADSL Modem Device Set for PCI Applications
AccessRunner
Table 4. 11627 Pin Signals by Group
Pin Name
I/O
Description
AFE ANALOG-to-DIGITAL INTERFACE
RX[15:0]
I
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.
ADC_CLK
CLIP#
O
O
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.
AFE DIGITAL-to-ANALOG INTERFACE
TX[15:0]
O
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.
DAC_CLK
FILTER_CLK
O
O
Transmit Clock for Parallel Mode
AFE Filter Clock
This signal is used by the DAC interface block to strobe the external AFE filters.
AFE_STR#
DIGITAL INTERFACE (DI)
TLXCK_EN
T_CLK_LS0
T_CLK_LS1
T_DAT_LS0
T_DAT_LS1
R_CLK_LS0
R_CLK_LS1
R_DAT_LS0
R_DAT_LS1
R_CLK_AS0
R_CLK_AS1
R_DAT_AS0
R_DAT_AS1
R_NCO_LS0
R_NCO_LS1
R_NCO_AS0
R_NCO_AS1
BIT_CLOCK
I
I/O
I/O
I
I
I
I
O
O
I
I
O
O
O
O
O
O
O
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.
T_FAST_BYTE#
T_INTER_BYTE#
R_FAST_FRAME#
R_FAST_SUPER#
O
O
O
O
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
I
AFE Strobe Signal
Doc. No. 100394B
October 19, 1999
Conexant
Proprietary Information
11
CONEXANT [ CONEXANT SYSTEMS, INC ]
