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參數(shù)資料
| 型號： | T7531A |
| 廠商： | Lineage Power |
| 元件分類： | Codec |
| 英文描述： | 16-Channel Programmable Codec Chip Set(十六通道可編程編解碼器芯片組) |
| 中文描述： | 16通道可編程解碼器芯片組（十六通道可編程編解碼器芯片組） |
| 文件頁數(shù)： | 37/44頁 |
| 文件大?。?/td> | 772K |
| 代理商： | T7531A |
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Lucent Technologies Inc.
37
Data Sheet
February 1999
Codec Chip Set
T7531A/T7536 16-Channel Programmable
Software Interface
(continued)
Table 27. T7536 Control Register 1: Digital Loopback
Table 28. Bit Map for T7536 All Channel Test Register at 0x1510 and 0x1550
Table 29. Bits 3:0 of T7536 All Channel Test Register at 0x1510 and 0x1550
Notes:
Read out address provides the previous read or write address to CDO whenever a new address is being written into the register.
When analog loopback is high, data that enters the analog transmit path (VTX) is converted to a 1.024 MHz digital bit stream and routed back
to the analog receive path (VRP VRN). The output of the transmit path is available on the oversampled data interface, but receive path over-
sampled data is ignored.
5-5134 (F)
When digital loopback is high, oversampled data receive (OSDR) is routed to oversampled data transmit (OSDX). The receive signal is propa-
gated to VRN/VRP but any transmit signal from VTX is disconnected. A reference voltage on VRTX is still required in this mode.
5-5135 (F)
Bit 0
LPBK
0
1
Mode
Normal operation
Digital loopback
Bit Number and Function
15—4
3
2
1
0
Not used
Read out address
Reserved
Analog loopback
Digital loopback
Bit Number
Function
3
2
1
0
0
—
—
—
Normal operation
1
—
—
—
Read out address
—
0
—
—
Reserved
—
1
—
—
Normal operation
—
—
0
—
Normal operation
—
—
1
—
Analog loopback
—
—
—
0
Normal operation
—
—
—
1
Digital loopback
OVERSAMPLED
DATA
INTERFACE
A/D, D/A
VTX
VRP
OSDX
OSDR
OVERSAMPLED
DATA
INTERFACE
A/D, D/A
VTX
VRP
OSDX
OSDR
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