參數(shù)資料
型號: IDT7290820BC
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 路由/交換
英文描述: TIME SLOT INTERCHANGE DIGITAL SWITCH 2,048 x 2,048
中文描述: TELECOM, DIGITAL TIME SWITCH, PBGA100
封裝: 11 X 11 MM, 1 MM PITCH, BGA-100
文件頁數(shù): 16/27頁
文件大小: 174K
代理商: IDT7290820BC
16
COMMERCIAL TEMPERATURE RANGE
IDT7290820 5V TIME SLOT INTERCHANGE
DIGITAL SWITCH 2,048 x 2,048
)
+
NOTE:
1. If bit 13 (PC) of the corresponding connection memory location is 1 (device in processor mode), then these entire 8 bits (SAB0, CAB6 - CAB0) are output on the output channel
and streamassociated with this location.
Bit
15
Name
Description
LPBK
(Per Channel Loopback)
V
/C
(Variable/Constant
Throughput Delay)
PC
(Processor Channel)
When 1, the RX n channel mdata comes fromthe TX n channel m For proper per channel loopback
operations, set the delay offset register bits OFn[2:0] to zero for the streams which are in the loopback mode.
This bit is used to select between the variable (LOW) and constant delay (HIGH) mode on a
per-channel basis.
14
13
When 1, the contents of the connection memory are output on the corresponding output channel and stream
Only the lower byte (bit 7 – bit 0) will be output to the TX output pins. When 0, the contents of the connection
memory are the data memory address of the switched input channel and stream
This bit is output on the CCO pin one channel early. The CCO bit for stream0 is output first.
12
CCO
(Control Channel Output)
OE
(Output Enable)
10-8,7
(1)
SAB3-0
(Source StreamAddress Bits)
6-0
(1)
CAB6-0
(Source Channel Address Bits)
11
This bit enables the TX output drivers on a per-channel basis. When 1, the output driver functions
normally. When 0, the output driver is in a high-impedance state.
The binary value is the number of the data streamfor the source of the connection.
The binary value is the number of the channel for the source of the connection.
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
LPBK
V
/C
PC
CCO
OE
SAB3
SAB2
SAB1
SAB0
CAB6
CAB5
CAB4
CAB3
CAB2
CAB1
CAB0
Data Rate
2.048 Mb/s
4.096 Mb/s
8.192 Mb/s
CAB Bits Used to Determine the Source Channel of the Connection
CAB4 to CAB0 (32 channel/input stream
CAB5 to CAB0 (64 channel/input stream
CAB6 to CAB0 (128 channel/input stream
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