cn8223 Mindspeed Technologies, cn8223 Datasheet - Page 12

• Manufacturer Part Number: cn8223
• Description: Atm Transmitter/receiver With Utopia Interface
• Manufacturer: Mindspeed Technologies

1.0 Product Description
1.1 Block Diagram
Figure 1-1. CN8223 Detailed Block Diagram
1-2
TXOUT_HS
TCLKO_HS
RXCKI_HS
TXCKI_HS
TXOUT[7:0]
RXIN_HS
RCV_HLD
RXIN[7:0]
TXOUT
TCLKO
RXCKI
TXCKI
LOCD
RXIN
±
±
±
±
±
9
9
Interfaces
Interface
Medium
Parallel
Speed
Speed
High
Line
Line Framer Section
HDLC
HDLC
DS3, E3, E4, STS-1
DS3, E3, E4, STS-1
Tx
Rx
Transmit Framer
Receive Framer
STS-3c, STM-1
STS-3c, STM-1
G.832
G.832
FEAC
FEAC
Tx
Rx
TOVH_CLK
ROVH_CLK
TMRKR
RMRKR
Overhead
Overhead
Extract
Insert
Rx
Tx
TXOVH
RXOVH
Transmit G.832
Receive G.832
Cell Processing
Conexant
and PLCP
and PLCP
Framer
Framer
8
8
Section
Interrupt Control
Cell Counters
Performance
Monitoring
STAT_INT
ONESECI
TEST1, 3
DL_INT
NTEST
RESET
8KCKI
Clock and
Control
Rx VPI/VCI
and Priority
Generation,
Screening
Validation
ATM Transmitter/Receiver with UTOPIA Interface
Rx Cell
Tx Rate
Tx Cell
ONESECO
FIFO Data Ports Section
A[7:1]
Microprocessor
8
Interface
D[15:0]
Interface
Interface
UTOPIA
Buffers
4-Port
4-Cell
FIFO
Data
and
16
SEL8BIT
PRCLK
W/R~
CS~
OE~
AS~
CN8223
Port 0 Ctrl
Port 1 Ctrl
Port 2 Ctrl
Port 3 Ctrl
UTOPIA Ctrl
9
9
FCTRL_OUT[16:0]
FCTRL_IN[7:0]
FDAT_IN
FDAT_OUT
100046D
CN8223