CX28398 Conexant Systems, CX28398 Datasheet - Page 47

• Manufacturer Part Number: CX28398
• Description: (CX28394 - CX28398) Quad/x16/Octal?T1/E1/J1 Framers
• Manufacturer: Conexant Systems

CX28394/28395/28398
Quad/x16/Octal—T1/E1/J1 Framers
Figure 1-11. CX28395 Logic Diagram (Non-Multiplexed System Bus Mode)
100054E
Read/Write or Write Strobe
1544 KHz All Ones Clock
2048 KHz All Ones Clock
Synchronous Bus mode
Data or Read Strobe
Receive Negative In
Motorola Bus mode
Data or Multiplexed
Address/Data Bus
TSB PCM Data In
TSB Signalling In/
Transmit Clock In
Test mode Select
Receive Clock In
Processor Clock
Hardware Reset
Receive NRZ In
Address Strobe
System Clock
Test Data In 1
Test Data In 2
Chip Select 1
Chip Select 2
RSB Clock In
TSB Clock In
Test Reset In
Test Clock In
Address Bus
PIO = Programmable I/O; controls located at PIO (address 018)
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
DS*(RD*)
RST*
SYSCKI
MCLK
SYNCMD
MOTO*
AS*(ALE*)
CS1*
CS2*
R/W*(W*)
AD[7:0]
A[11:0]
TCKI[16:1]
T1ACKI
E1ACKI
RCKI[16:1]
RNRZ[16:1]
RNEGI[16:1]
TSBCKI[16:1]
TPCMI[16:1]
TSIGI[16:1]
RSBCKI[16:1]
TCK
TMS
TDI1
TDI2
TRST*
Microprocessor Interface
Transmit System Bus
Receive System Bus
I= Input, O= Output
Boundary Scan
RFSYNC[16:1]/RMSYNC[16:1]
TFSYNC[16:1]/TMSYNC[16:1]
and Control
Transmitter
Receiver
(XMTR)
(RCVR)
(JTAG)
(MPU)
(RSB)
(TSB)
Conexant
RPCMO[16:1]
TNRZO[16:1]
RSIGO[16:1]
TCKO[16:1]
ONESEC
DTACK*
INTR*
TDO1
TDO2
PIO
PIO TSB Frame/Multiframe Sync
PIO RSB Frame/Multiframe Sync
O
O
O
O
O
O
O
O
Data Transfer Acknowledge
Interrupt Request
One-Second Timer
Transmit Clock Out
Transmit Transmit NRZ Out
RSB PCM Data Out
RSB Signalling
Test Data Out 1
Test Data Out 2
1.0 Product Description
1.2 Pin Assignments
1-29