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| 型号： | 78P2352-DB-CMI |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 41/42页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD 78P235X |
| 标准包装： | 1 |
| 系列： | * |
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78P2352
Dual Channel
OC-3/ STM1-E/ E4 LIU
Page: 8 of 42
2006 Teridian Semiconductor Corporation
Rev. 2.4
In SW mode only, a Full Remote (digital) Loopback
bit FLBK is also available in the Advanced Tx
Control register. This loopback exercises the entire
Rx and Tx paths of the 78P2352 including the Tx
clock recovery unit. As such, the user must enable
either Serial Plesiochronous or Serial Loop-timing
transmit modes to utilize the Full Remote (digital)
Loopback.
Rx CDR
CMI
Decoder
RXxP/N
SOxDP/N
SOxCKP/N
POx[3:0]D
POxCK
PTOxCK
PIx[3:0]D
PIxCK
SIxCKP/N
SIxDP/N
FIFO
Tx CDR
Lock Detect
EACH CHANNEL: Rx
CMI
Encoder
ECLxP/N
CMIxP/N
TXxCKP/N
Lock Detect
EACH CHANNEL: Tx
Adaptive
Eq.
LOS Detect
PMOD, SMOD[1:0], PAR
LLBK
RLBK
CMI
Figure 8: Remote (Digital) Loopback
INTERNAL POWER-ON RESET
Power-On Reset (POR) function is provided on chip.
Roughly 50
s after Vcc reaches 2.4V at power up, a
reset pulse is internally generated. This resets all
registers to their default values as well as all state
machines within the transceiver to known initial
values. The reset signal is also brought out to the
PORB pin.
The PORB pin is a special function
analog pin that allows for the following:
Override the internal POR signal by driving in
an external active low reset signal;
Use the internally generated POR signal to
trigger other resets;
Add external capacitor to slow down the
release of power-on reset (approximately 8
s
per nF added).
NOTE: Do not pull-up the PORB pin to Vcc or drive
this pin high during power-up. This will prevent the
internal reset generator from resetting the entire chip
and may result in errors.
SERIAL CONTROL INTERFACE
The serial port controlled registers allows a generic
controller to interface with the 78P2352. It is used
for mode settings, diagnostics and test, retrieval of
status and performance information, and for on-chip
fuse trimming during production test. The SPSL pin
must be high in order to use the serial port.
The serial interface consists of four pins: Serial Port
Enable (SEN_CMI), Serial Clock (SCK_MON), Serial
Data In (SDI_PAR), and Serial Data Out (SDO_E4).
The SEN_CMI pin initiates the read and write
operations.
It can also be used to select a
particular device allowing SCK_MON, SDI_PAR
and SDO_E4 to be bussed together.
SCK_MON is the clock input that times the data
on SDI_PAR and SDO_E4. Data on SDI_PAR
is latched in on the rising-edge of SCK_MON,
and data on SDO_E4 is clocked out using the
falling edge of SCK_MON.
SDI_PAR is used to insert mode, address, and
register data into the chip. Address and Data
information are input least significant bit (LSB)
first. The mode and address bit assignment and
register table are shown in the following section.
SDO_E4 is a tri-state capable output. It is used
to output register data during a read operation.
SDO_E4 output is normally high impedance,
and is enabled only during the duration when
register data is being clocked out. Read data is
clocked out least significant bit (LSB) first.
If SDI_PAR coming out of the micro-controller chip is
also tri-state capable, SDI_PAR and SDO_E4 can
be connected together to simplify connections. The
maximum clock frequency for register access is
20MHz.
PROGRAMMABLE INTERRUPTS
In addition to the receiver LOS and LOL status pins,
the 78P2352 provides a programmable interrupt for
each transmitter.
In HW control mode, the default events that trigger
the Tx interrupt is a transmit Loss of Lock (TXLOL)
or FIFO error (FERR).
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 78P2352-IEL | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:Dual Channel OC-3/ STM1-E/ E4 LIU |
| 78P2352-IEL/F | 功能描述:接口 - 专用 Dual Ch OC-3/STM1-1e/E4 LIU RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
| 78P2352-IELR | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:Dual Channel OC-3/ STM1-E/ E4 LIU |
| 78P2352-IELR/F | 功能描述:IC LIU SDH SONET 2CH 128-LQFP RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:25 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:4.5 V ~ 5.5 V 安装类型:通孔 封装/外壳:16-DIP（0.300"，7.62mm） 供应商设备封装:16-PDIP 包装:管件 |
| 78P2352-IGT | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:Dual Channel OC-3/ STM1-E/ E4 LIU |
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