70P2352-IGT 查看數據表（PDF） - Unspecified

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70P2352-IGT

Dual Channel OC-3/ STM1-E/ E4 LIU

Unspecified 

78P2352

Dual Channel

OC-3/ STM1-E/ E4 LIU

PIN DESCRIPTION (CONTINUED)

SERIAL-PORT PINS

NAME

SEN_CMI

SCK_MON

SDI_PAR

SDO_E4

PIN TYPE DESCRIPTION

[SPSL=1] Serial-Port Enable:

High during read and write operations. Low disables the serial port.

While SEN is low, SDO remains in high impedance state, and SDI and

95 CIU

SCK activities are ignored.

[SPSL=0] Medium Select:

Low: Fiber (NRZ pass-through) mode

High: CMI mode

[SPSL=1] Serial Clock:

Controls the timing of SDI and SDO.

[SPSL=0] Receive Monitor Mode Enable:

96 CIS

When high, adds 20dB of flat gain to the incoming signal of both

channels before equalization.

NOTE: Channel specific monitor modes can be enabled through the

serial port. Rx Monitor Mode is only available in CMI mode

[SPSL=1] Serial Data Input:

94 CI

Inputs mode and address information. Also inputs register data during

a Write operation. Both address and data are input least significant bit

first.

[SPSL=0] Data Width Select:

Selects 4 bit parallel transmit modes (input high) or serial transmit

modes (input low)

[SPSL=1] Serial Data Output:

COZ/

93

Outputs register information during a Read operation. Data is output

least significant bit first

CI [SPSL=0] Rate Select:

Selects E4 operation (input high) or STM1/STS3 operation (input low)

POWER AND GROUND PINS

It is recommended that all supply pins be connected to a single power supply plane and all ground pins be

connected to a single ground plane. See application note for decoupling guidelines.

NAME

PIN

TYPE DESCRIPTION

VCC

VDD

GND

VSS

TGND

5, 12, 21, 74, 85, 92, 99, 105,

109, 116, 120, 126

S Power Supply

23, 37, 40, 44, 48, 49, 53, 57, 60 S CMOS I/O Driver Supply

6, 13, 16, 22, 73, 84, 91, 102,

108, 112, 113, 114, 115, 117,

123

G Ground

24, 36, 39, 43, 47, 50, 54, 58, 61 G CMOS I/O Driver Ground

Trim Ground

82

G Used during production test. Connect directly to

ground. Do not decouple to supply or PORB.

Page: 21 of 42

2006 Teridian Semiconductor Corporation

Rev. 2.4

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