28222-14 View Datasheet(PDF) - Conexant Systems

Part Name

Description

Manufacturer

28222-14

ATM Transmitter/Receiver with UTOPIA Interface

Conexant Systems 

1.0 Product Description

1.10 Pin Definitions

CN8223

ATM Transmitter/Receiver with UTOPIA Interface

Table 1-2. Hardware Signal Definitions (1 of 5)

Pin Label

Signal Name No.

RXCKI

Receive Clock

10

Input

RXCKI_HS–

Receive Clock

11

RXCKI_HS+

Input

12

RXIN_HS–

RXIN_HS+

Receive Serial

20

Input

21

RXIN[0]

RXIN[1]

RXIN[2]

RXIN[3]

RXIN[4]

RXIN[5]

RXIN[6]

RXIN[7]

RXIN[8]

TXCKI

TXCKI_HS–

TXCKI_HS+

Receive Input

15

16

17

18

19

22

25

154

155

Transmit Clock

30

Input

Transmit Clock

23

Input

24

TXIN

Transmit Inputs

32

TCLKO

TXOUT[0]

TXOUT[1]

TXOUT[2]

TXOUT[3]

TXOUT[4]

TXOUT[5]

TXOUT[6]

TXOUT[7]

TXOUT[8]

TCLKO_HS+

TCLKO_HS–

TXOUT_HS+

TXOUT_HS–

LOCD

Transmit Clock

31

Output

Transmit Output

33

34

35

36

42

43

56

57

58

Transmit Clock Out 28

29

Transmit Serial Out 38

39

Loss of Cell

122

Delineation

Type

CMOS/TTL

PECL

PECL

PECL

PECL

CMOS/TTL

CMOS/TTL

CMOS/TTL

CMOS/TTL

CMOS/TTL

CMOS/TTL

CMOS/TTL

CMOS/TTL

CMOS/TTL

CMOS/TTL

PECL

PECL

CMOS/TTL

CMOS/TTL

CMOS/TTL

CMOS/TTL

CMOS/TTL

CMOS/TTL

CMOS/TTL

CMOS/TTL

CMOS/TTL

CMOS/TTL

CMOS/TTL

PECL

PECL

PECL

PECL

CMOS/TTL

I/O

Definition

I Receive clock for all line rates except STS-3c,

STM-1, and E4.

I Differential PECL level for high-speed modes.

I Receive clock for STS-3c, STM-1, and E4. Tie to

+5 V if not used.

I Differential PECL level for high-speed modes.

I Serial data in for STS-3c, STM-1, and E4. Tie to

+5 V if not used.

I Receive parallel and TAXI mode data inputs. Tie

I to a logic low level if not used.

I

I

I

I

I

I

I

I Transmit clock for all modes except STS-3c,

STM-1, and E4.

I Differential PECL level for high-speed modes.

I Transmit clock for STS-3c, STM-1, and E4. Tie to

+5 V if not used.

I Transmit serial data input for all modes except

STS-3c, STM-1, and E4.

O Transmit clock output for all modes except

STS-3c, STM-1, and E4.

O Transmit parallel and TAXI mode data outputs.

O

O

O

O

O

O

O

O

O Differential PECL level. Transmit clock output for

O STS-3c, STM-1, and E4.

O Differential PECL level. Transmit serial data

O output for STS-3c, STM-1, and E4.

O Asserted when cell synchronization is lost.

1-20

Conexant

100046C

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