CN8223 Datasheet, PDF (31/161 Pages) Conexant Systems, Inc – ATM Transmitter/Receiver with UTOPIA Interface

CN8223
ATM Transmitter/Receiver with UTOPIA Interface
1.0 Product Description
1.10 Pin Definitions
Table 1-2. Hardware Signal Definitions (2 of 5)
Pin Label
Signal Name No.
TXOVH[0]
TXOVH[1]
TXOVH[2]
TXOVH[3]
TXOVH[4]
TXOVH[5]
TXOVH[6]
TXOVH[7]
RXOVH[0]
RXOVH[1]
RXOVH[2]
RXOVH[3]
RXOVH[4]
RXOVH[5]
RXOVH[6]
RXOVH[7]
RMRKR[1]
RMRKR[0]
Transmit Overhead 44
Bus
45
46
47
48
49
50
51
Receive Overhead 156
Bus
157
158
159
2
3
4
5
Receive Overhead 8
Markers
9
ROVH_CLK[1]
ROVH_CLK[0]
TOVH_CLK
TMRKR
Receive Overhead 6
Clocks
7
Transmit Overhead 55
Clock
Transmit Overhead 52
Marker
Type
CMOS/TTL
CMOS/TTL
CMOS/TTL
CMOS/TTL
CMOS/TTL
CMOS/TTL
CMOS/TTL
CMOS/TTL
CMOS/TTL
CMOS/TTL
CMOS/TTL
CMOS/TTL
CMOS/TTL
CMOS/TTL
CMOS/TTL
CMOS/TTL
CMOS/TTL
CMOS/TTL
CMOS/TTL
CMOS/TTL
CMOS/TTL
CMOS/TTL
I/O
Definition
I Transmit bus input for
I STS-1/STS-3c/STM-1/G.832 overhead. Tie to a
I logic low level if not used.
I
I
I
I
I
O Receive bus output for
O STS-1/STS-3c/STM-1/G.832 overhead.
O
O
O
O
O
O
O Used for overhead bus output. RMRKR[1] is an
O 8 kHz output synchronized to the received PLCP
frame. RMRKR[1] is not available in DS-3 direct
cell mapping mode.
O Used for overhead bus output.
O
O Used for bus input.
O Used for bus input in modes 4, 5, 6 and 7 (OC3,
OC1, E4 and G.832 E3).
100046C
Conexant
1-21