CX28398 Conexant Systems, CX28398 Datasheet - Page 43
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CX28398
Manufacturer Part Number
CX28398
Description
(CX28394 - CX28398) Quad/x16/Octal?T1/E1/J1 Framers
Manufacturer
Conexant Systems
Datasheet
1.CX28398.pdf
(305 pages)
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CX28394/28395/28398
Quad/x16/Octal—T1/E1/J1 Framers
Figure 1-7. CX28394 Logic Diagram (Non-Multiplexed System Bus Mode)
100054E
Read/Write or Write Strobe
1544 KHz All Ones Clock
2048 KHz All Ones Clock
Transmit Datalink Data In
Bused TSB PCM Data In
Synchronous Bus mode
Data or Read Strobe
Bused RSB Clock In
Receive Negative In
Bused TSB Clock In
Motorola Bus mode
Data or Multiplexed
Receive Positive In
Address/Data Bus
Transmit Clock In
TSB Signalling In
Test mode Select
Receive Clock In
Processor Clock
Hardware Reset
Address Strobe
System Clock
Serial Data In
Test Reset In
Test Clock In
Address Bus
Test Data In
Chip Select
I/O
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
PIO = Programmable I/O; controls located at PIO (address 018)
RST*
SYSCKI
MCLK
SYNCMD
MOTO*
AS*(ALE*)
CS*
DS*(RD*)
R/W*(W*)
AD[7:0]
A[10:0]
SERDI
TCKI[4:1]
T1ACKI
E1ACKI
RCKI[4:1]
RPOSI[4:1]
RNEGI[4:1]
TSBCKI
TPCMI
TSIGI[4:1]
TDLI[4:1]
RSBCKI
TCK
TMS
TDI
TRST*
Microprocessor Interface
Transmit System Bus
Receive System Bus
I= Input, O= Output
Boundary Scan
Port Interface
and Control
Transmitter
LIU Serial
(SERIO)
(XMTR)
Receiver
(RCVR)
(JTAG)
(MPU)
(TSB)
(RSB)
Conexant
TNEGO[4:1]/MSYNCO[4:1]
TPOSO[4:1]/TNRZO[4:1]
TMSYNC[4:1]
TDLCKO[4:1]
TCKO{4:1]
RMSYNC
ONESEC
SERCKO
RDLCKO
RFSYNC
TFSYNC
SERCS*
RPCMO
DTACK*
SIGFRZ
SERDO
RSIGO
RINDO
TINDO
INTR*
RDLO
TDO
PIO
PIO
PIO
PIO
PIO
PIO
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
Data Transfer Acknowledge
Interrupt Request
One-Second Timer
Serial Clock Out
Serial Data Out
Serial Port Chip Select
Transmit Clock Out
Transmit Positive/Transmit NRZ Out
Transmit Negative/Transmit
Multiframe Sync Out
Bused Time Slot Indicator
Bused TSB Frame Sync
TSB Multiframe Sync
Transmit Datalink Clock Out
Bused RSB PCM Data Out
Bused Time Slot Indicator
Bused RSB Frame Sync
RSB Multiframe Sync
RSB Signalling
Receive Datalink Clock Out
Receive Datalink Data Out
Signalling Freeze
Test Data Out
1.0 Product Description
1.2 Pin Assignments
1-25
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