RS8973 Mindspeed Technologies, RS8973 Datasheet - Page 14

• Manufacturer Part Number: RS8973
• Description: Single-chip Sdsl/hdsl Transceiver
• Manufacturer: Mindspeed Technologies

1.0 System Overview
1.1 Functional Summary
Figure 1-2. Detailed Block Diagram
1-2
ADDR[7:0]
WR/R/W
MUXED
MOTEL
READY
AD[7:0]
RD/DS
RXBN
RXBP
RXN
RXP
RST
TXN
ALE
TXP
IRQ
CS
VGA
Driver
Line
Microcomputer
Interface
ADC
System Control
Receive Section
Microcomputer
Transmit Section
Interface and
Reconstruc-
tion Filter
Analog
section, a timing recovery and clock interface, a microcomputer interface, and a
test and diagnostic interface.
between each of these functional blocks.
CT
Digital
Front
End
The RS8973 comprises five major functions: a transmit section, a receive
Registers
Shaping
Filter
Control
Timers
Status
Pulse-
Filter
IS
and
Preliminary Information
Conexant
Canceller
Echo
Variable-
Gain
DAC
Figure 1-2
Equalizer
Scrambler
details the connections within and
Source/
Symbol
Detector
Single-Chip SDSL/HDSL Transceiver
Synthesizer
Reference
Generator
Recovery/
Transmit
Interface
Interface
Amplifier
Channel
Receive
Channel
Voltage
Crystal
nostics
Timing
JTAG
Clock
Diag-
Unit
Unit
PLL
RQ[1]/RDAT
RQ[0]/BCLK
RBCLK
HCLK
QCLK
XTALI/MCLK
XTALO
XOUT
RBIAS
VCOMO
VCOMI
VCCAP
VRXP,VRXN
VTXP,VTXN
SMON
TMS
TDI
TCK
TDO
TBCLK
TQ[1]/TDAT
TQ[0]
N8973DSD
RS8973