參數(shù)資料
型號： T7121-EL2
英文描述： T7121 HDLC Interface for ISDN
中文描述： T7121的HDLC接口用于ISDN
文件頁數(shù)： 27/68頁
文件大?。?/td> 685K
代理商： T7121-EL2
Lucent Technologies Inc.
27
Data Sheet
April 1997
T7121 HDLC Interface for ISDN (HIFI-64)
Functional Description
(continued)
In the remote loopback mode:
CLKR must equal or be synchronous with CLKX. We recommend clocking both transmit and receive data with
CLKX (R5—B6 set to 1).
I
Receive and transmit bit masks (R12 and R13) should be programmed to the same value.
I
Transmitted data is retimed. If HWYEN = 0 (R0—B7), the transmitted data is retimed with a maximum delay of
2 bits. If HWYEN = 1 (R0—B7), the received data is transmitted in the first programmed time slot after the
receive time slot is complete.
I
Received data is retransmitted on the DXA and/or the DXB output, depending on DXAC and DXBC.
I
The transmitter should be disabled. The receiver can be disabled or, if desired, enabled. Received data is sent
as usual to the receive FIFO if the receiver is enabled.
5-5037
Figure 11. Remote Loopback Mode
CAUTION: Do not use local and remote loopback modes at the same time. Such use results in an
unknown state in the chip which only a full reset of the chip can clear.
HDLC
CHI
TRANSMITTER
DXA
DXB
(USER-SELECTED)
FIFO
HDLC
CHI
FIFO
RECEIVER
DRA
OR
DRB
(USER-SELECTED)
相關PDF資料
PDF描述
T7121-PL2 T7121 HDLC Interface for ISDN
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相關代理商/技術參數(shù)
參數(shù)描述
T7-121F1 功能描述:撥動開關 ON OFF ON 1 Pole Standard Bat Handle RoHS:否 制造商:OTTO 觸點形式: 開關功能: 電流額定值: 電壓額定值 AC: 電壓額定值 DC: 功率額定值: 端接類型: 安裝風格: 端子密封: 觸點電鍍: 照明:
T7-121F5 功能描述:撥動開關 ON OFF ON 1 Pole Standard Bat Handle RoHS:否 制造商:OTTO 觸點形式: 開關功能: 電流額定值: 電壓額定值 AC: 電壓額定值 DC: 功率額定值: 端接類型: 安裝風格: 端子密封: 觸點電鍍: 照明:
T7-121G1 功能描述:撥動開關 (ON) OFF ON 1 Pole Standard Bat Handle RoHS:否 制造商:OTTO 觸點形式: 開關功能: 電流額定值: 電壓額定值 AC: 電壓額定值 DC: 功率額定值: 端接類型: 安裝風格: 端子密封: 觸點電鍍: 照明:
T7-121G5 功能描述:撥動開關 (ON) OFF ON 1 Pole Standard Bat Handle RoHS:否 制造商:OTTO 觸點形式: 開關功能: 電流額定值: 電壓額定值 AC: 電壓額定值 DC: 功率額定值: 端接類型: 安裝風格: 端子密封: 觸點電鍍: 照明:
T7-121H1 制造商:OTTO 功能描述:Toggle Switches OFF NONE ON 1 Pole Standard Bat Handle 制造商:OTTO Engineering Inc 功能描述:TOGGLE SWITCH 1 POLE
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