CN8237EBGB Mindspeed Technologies, CN8237EBGB Datasheet - Page 275

• Manufacturer Part Number: CN8237EBGB
• Description: ATM SAR 622Mbps 3.3V ABR/CBR/GFR/UBR/VBR 456-Pin BGA
• Manufacturer: Mindspeed Technologies

Specifications of CN8237EBGB

• Package: 456BGA
• Traffic Class: ABR|CBR|GFR|UBR|VBR
• Utopia Type: Level 1|Level 2
• Host Interface: PCI
• Maximum Data Rate: 622 Mbps
• Typical Operating Supply Voltage: 3.3 V
• Minimum Operating Supply Voltage: 3.135 V

CN8237
ATM OC-12 ServiceSAR Plus with xBR Traffic Management
Table 13-3. UTOPIA Mode Signals
28237-DSH-001-C
TxDATA[15:0]
TxPAR
TxSOC (TxMARK)
TxEN*
TxCLAV (TxFLAG*)
TxADD[4:0]
TxCLK
RxDATA[15:0]
RxPAR
RxSOC (RxMARK)
RxEN*
RxCLAV (RxFLAG*)
RxCLK
RxADD[4:0]
NOTE(S):
(1)
When operating the CN8237 in 8-bit mode, pull-ups need to be added to the unused high order eight bits (RxDATA[15:8]).
CN8237 Signal
(1)
actual signals generated or received by the framer in UTOPIA mode are shown in
Table
derived from the CLKD3 output of the CN8237.
TxDATA[15:0]
TxPRTY
TxSOC (TxMARK)
TxENB*
TxFULL*
TxADDR[4:0]
TxCLK
RxDATA[15:0]
RxPRTY
RxSOC (RxMARK)
RxENB*
RxEMPTY*
RxCLK/TxCLK
RxADDR[4:0]
The interpretation of the ATM UTOPIA interface pins on the CN8237 and the
13-3. Both the TxCLK and RxCLK signals of the UTOPIA interface can be
PHY Signal
Mindspeed Technologies
Active Polarity
Rising Edge
Rising Edge
High
High
Low
Low
Low
Low
—
—
—
—
—
—
™
13.3 ATM Physical Interface I/O Pins
13.0 ATM UTOPIA Interface
CN8237 Direction
Out
Out
Out
Out
Out
Out
Out
In
In
In
In
In
In
In
13-3