bt8970 Mindspeed Technologies, bt8970 Datasheet - Page 10

• Manufacturer Part Number: bt8970
• Description: Single-chip Hdsl Transceiver
• Manufacturer: Mindspeed Technologies

1.0 System Overview
1.1 Functional Summary
Figure 1-2. Bt8970 Detailed Block Diagram
1-2
ADDR[7:0]
WR/R/W
MUXED
MOTEL
READY
AD[7:0]
RD/DS
RXBN
RXBP
RXP
RXN
RST
TXN
ALE
TXP
IRQ
CS
VGA
Microcomputer
Driver
Line
TXLDIN
Interface
TXLDIP
Receive Section
Transmit Section
Preliminary Information/Conexant Proprietary and Confidential
System Control
Microcomputer
Interface and
ADC
TXPSP
TXPSN
Shaping
Registers
Pulse-
Filter
Control
Timers
Digital
Status
Front
End
and
canceller
Conexant
Echo
Variable-
Gain
DAC
Equalizer
Scrambler
Symbol
Source/
Detector
Single-Chip HDSL Transceiver
Reference
Generator
Recovery/
Interface
Multiplier
Amplifier
Transmit
Interface
Channel
Channel
Receive
Voltage
Timing
Crystal
nostics
Clock
JTAG
Diag-
Unit
PLL
Unit
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]
RQ[1]/RDAT
RQ[0]/BCLK
RBCLK
100101B
Bt8970
100101_003