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| 型號(hào)： | TTSI2K32T3BAL |
| 英文描述： | 2048-Channel, 32-Highway Time-Slot Interchanger |
| 中文描述： | 2048通道，32道時(shí)隙交換器 |
| 文件頁(yè)數(shù)： | 51/66頁(yè) |
| 文件大小： | 1321K |
| 代理商： | TTSI2K32T3BAL |
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Preliminary Data Sheet
February 1999
TTSI2K32T
2048-Channel, 32-Highway Time-Slot Interchanger
51
Lucent Technologies Inc.
Configuration Register Architecture
(continued)
Transmit Highway 3-State Options
There are several ways of 3-stating the transmit highways:
TEST (active-low) is the input pin that 3-states all outputs and bidirectional pins of the device.
GXE (bit 0) (active-high) is the global transmit enable bit in the general command register. It applies to all transmit
highways.
XE (bit 2) (active-high) is the transmit highway 3-state enable bit in the transmit highway configuration register
(byte 2). There is a separate XE bit for each one of the 32 transmit highways.
ED (bit 6) (active-high) is the external drivers bit in the general command register. This bit applies to all the transmit
highways. It affects the 3-stating of the transmit highways. Time slots that are selected to be 3-stated, by setting
the TSDSM[2—0] bits to 0x7 in byte 2 of the connection store, will be driven with random data if ED = 1. Otherwise,
these time slots will be 3-stated.
Table 41. Transmit Highway 3-State Options
TEST
(Input
Pin)
GXE
(Cfg
Bit)
ED
(Cfg
Bit)
XE for
Transmit
Highway [i]
(Cfg Bit)
X
X
X
0
1
TXD[0—31] Pins
TXOE[0—31] Pins
0
1
1
1
1
X
0
0
1
1
X
0
1
0
0
All high impedance.
All high impedance.
All high impedance.
All 0.
All driven with random data.
All 0.
TXD[i] = high impedance.
TXOE[i] = 0.
TXD[i] = 0, 1, or high impedance
according to connection store pro-
gramming.
TXD[i] is driven with random data.
TXOE[i] = 0 or 1, representing high-imped-
ance state according to connection store
programming.
TXOE[i] = 0.
1
1
1
1
1
1
0
1
TXD[i] = 0 or 1 reflecting the correct
transmit data. Time slots which are
selected for high-impedance mode
via the connection store will be
driven with random data and not
3-stated.
TXOE[i] = 0 or 1, representing high-imped-
ance state according to connection store
programming.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| TTSI4K32T | 制造商:AGERE 制造商全稱:AGERE 功能描述:4096-Channel, 32-Highway Time-Slot Interchanger |
| TTSI4K32T3BAL | 制造商:AGERE 制造商全稱:AGERE 功能描述:4096-Channel, 32-Highway Time-Slot Interchanger |
| TTSL-1 | 功能描述:電線鑒定 THERM. TRANS. SELFLAM LABEL RoHS:否 制造商:TE Connectivity / Q-Cees 產(chǎn)品:Labels and Signs 類(lèi)型: 材料:Vinyl 顏色:Blue 寬度:0.625 in 長(zhǎng)度:1 in |
| TTSL10VC3-5 | 功能描述:電線鑒定 ThermTrans, Self-Lam Label, Vinyl, .50" RoHS:否 制造商:TE Connectivity / Q-Cees 產(chǎn)品:Labels and Signs 類(lèi)型: 材料:Vinyl 顏色:Blue 寬度:0.625 in 長(zhǎng)度:1 in |
| TTSL126VC3-1 | 功能描述:電線鑒定 1.0" X 7.44" THERMAL RoHS:否 制造商:TE Connectivity / Q-Cees 產(chǎn)品:Labels and Signs 類(lèi)型: 材料:Vinyl 顏色:Blue 寬度:0.625 in 長(zhǎng)度:1 in |
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