参数资料
型号: IDT72V71623BC
厂商: IDT, Integrated Device Technology Inc
文件页数: 2/28页
文件大小: 0K
描述: IC DGTL SW 2048X2048 144-BGA
标准包装: 14
系列: 72V
类型: 多路复用器
电路: 1 x 1:16
独立电路: 1
电压电源: 单电源
电源电压: 3 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 144-LBGA
供应商设备封装: 144-CABGA(13x13)
包装: 托盘
其它名称: 72V71623BC
10
COMMERCIAL TEMPERATURE RANGE
IDT72V71623 3.3V TIME SLOT INTERCHANGE
DIGITAL SWITCH 2,048 x 2,048
TABLE 3 — CONTROL REGISTER (CR) BITS
TABLE 4 — CONNECTION MEMORY BITS
ResetValue:
4000H.
Bit
Name
Description
15
Reset(SoftwareReset)
A one will reset the device and have the same effect as of the RESET pin. Must be zero for normal operation. Before beginning
operation,thisbitmustbeheldzeroforminimum100ns.
14
Unused
Mustbeoneforproperoperation.
13
OEPOL
When 1, a one on OEI pin denotes an active state on the output data stream; zero on OEI pin denotes high-impedance state.
(OutputEnablePolarity)
When0,aonedenoteshigh-impedanceandazerodenotesanactivestate.
12
Unused
Mustbezerofornormaloperation.
11
MBP
When1,theConnectionMemoryblockprogrammingfeatureisreadyfortheprogrammingofConnectionMemoryhighbits,
(Memory Block Program)
bit 13 to bit 15. When 0, this feature is disabled.
10
Unused
Mustbezerofornormaloperation.
9-7
BPD2-0
These bits carry the value to be loaded into the Connection Memory block whenever the memory block programming feature is
(BlockProgrammingData) activated. After the MBP bit in the control register is set to 1 and the BPE bit is set to 1, the contents of the bits BPD2-0 are
loaded into bit 15 and 13 of the Connection Memory. Bit 12 to bit 0 of the Connection Memory are set to 0.
6
BPE
Azerotoonetransitionofthisbitenablesthememoryblockprogrammingfunction.TheBPEandBPD2-0bitsintheCRregister
(BeginBlockProgramming have to be defined in the same write operation. Once the BPE bit is set HIGH, the device requires two frames to complete the
Enable)
blockprogramming.Aftertheprogrammingfunctionhasfinished,theBPEbitreturnstozerotoindicatetheoperationiscompleted.
WhentheBPE=1,theotherbitinthecontrolregistermustnotbechangedfortwoframestoensureproperoperation.
5
OSB
WhenODE=0andOSB=0,theoutputdriversoftransmitserialstreamsareinhigh-impedancemode.WhenODE=1orOSB=1,
(OutputStandBy)
ConnectionMemoryMod1-0
≠ 1and1,theoutputserialstreamdriversfunctionnormally.WhenbothConnectionMemoryMod
1 - 0 = 1 and 1, the output drivers of the transmit serial streams are in high impedance mode. Please refer to Table 1.
4
SFE
Azerotoonetransitioninthisbitstartstheframeevaluationprocedure.WhentheCFEbitintheFARregisterchangesfromzero
(StartFrameEvaluation)
toone,theevaluationprocedurestops.Tostartanotherframeevaluationcycle,setthisbittozeroforatleastoneframe.
3-0
DR3-0
Input/Outputdatarateselection.SeeTable5fordetailedprogramming.
15
14
13
12
11
10
9876543210
SRS
1
OEP
0
MBP
0
BPD2
BPD1
BPD0
BPE
OSB
SFE
DR3
DR2
DR1
DR0
Bit
Name
Description
15
LPBK
When 1, the RX n channel m data comes from the TX n channel m. For proper per channel loopback operations, set the delay
(PerChannelLoopback)
offset register bits OFn[2:0] to zero for the streams which are in the loopback mode. This feature is offered only when
DR3-0 = 0000, 0001 or 0010 is selected via the control register.
14,13 MOD1-0
MOD1 MOD0
MODE
(SwitchingModeSelection)
0
VariableDelaymode
0
1
ConstantDelaymode
1
0
Processormode
1
OutputHigh-Impedance
12
Unused
Mustbezerofornormaloperation.
11-8
SAB3-0
The binary value is the number of the data stream for the source of the connection. Unused SAB bits must be zero for proper
(Source Stream Address Bits) operation.
7-0
CAB7-0
The binary value is the number of the channel for the source of the connection. Unused CAB bits must be zero for proper
(Source Channel Address Bits) operation.
15
14
13
12
11
10
9876543210
LPBK MOD1 MOD0
0
SAB3
SAB2
SAB1
SAB0
CAB7
CAB6
CAB5
CAB4
CAB3
CAB2
CAB1
CAB0
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