2006 Teridian Semiconductor Corporation Rev." />
參數(shù)資料
型號: 78P2351-DB-CMI
廠商: Maxim Integrated Products
文件頁數(shù): 15/42頁
文件大小: 0K
描述: DEMO BOARD 78P2351
標(biāo)準(zhǔn)包裝: 1
系列: *
78P2351
Single Channel
OC-3/ STM1-E/ E4 LIU
Page: 22 of 42
2006 Teridian Semiconductor Corporation
Rev. 2.4
PIN DESCRIPTION (continued)
SERIAL-PORT PINS
NAME
PIN
TYPE
DESCRIPTION
SEN_CMI
72
CIU
[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
SCK activities are ignored.
[SPSL=0] Medium Select:
Low: Fiber (NRZ pass-through) mode
High: CMI mode
SCK_MON
73
CIS
[SPSL=1] Serial Clock:
Controls the timing of SDI and SDO.
[SPSL=0] Receive Monitor Mode Enable:
When high, adds 20dB of flat gain to the incoming signal before
equalization. Rx Monitor mode is only available in CMI mode.
SDI_PAR
71
CI
[SPSL=1] Serial Data Input:
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)
SDO_E4
70
COZ/
CI
[SPSL=1] Serial Data Output:
Outputs register information during a Read operation. Data is output
least significant bit first
[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
3, 10, 16, 56, 66, 69, 76,
80, 88, 92, 98
S
Power Supply
VDD
31, 35, 39, 43
S
CMOS I/O Driver Supply
GND
4, 11, 17, 55, 65, 68, 77,
84, 85, 86, 87, 89, 95
G
Ground
VSS
30, 34, 38, 42
G
CMOS I/O Driver Ground
TGND
63
G
Trim Ground
Used during production test. Connect directly to ground.
Do not decouple to supply or PORB.
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