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參數(shù)資料
| 型號： | T7121 |
| 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)： | 34/68頁 |
| 文件大?。?/td> | 685K |
| 代理商： | T7121 |
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34
Lucent Technologies Inc.
Data Sheet
April 1997
T7121 HDLC Interface for ISDN (HIFI-64)
Functional Description
(continued)
Table 12. Register R5—Receiver Control Register
R5—B7
P17CTL
(0)
R5—B6
P21CTL
(0)
R5—B5
RIL5
(0)
R5—B4
RIL4
(0)
R5—B3
RIL3
(0)
R5—B2
RIL2
(0)
R5—B1
RIL1
(0)
R5—B0
RIL0
(0)
Register
R5
Bit
Symbol
RIL0—RIL5
Name/Function
B(0—5)
Receiver Interrupt Level.
These bits determine when a receiver
full (RF) interrupt is triggered. The value programmed in RIL equals
the number of bytes in the receive FIFO which triggers an RF inter-
rupt. For example, a code of 001111 means an interrupt is gener-
ated when the receive FIFO contains 15 or more bytes. The code
000000 is a special case and means an interrupt is generated only
when the receive FIFO is actually full.
Pin 21 Control.
This bit controls the functionality of pin 21. When
this bit is set to 1, pin 21 is configured as DRB, and received data is
clocked by CLKX. When this bit is cleared to 0, pin 21 is configured
as CLKR and provides the timing for received data.
Pin 17 Control.
This bit controls the functionality of pin 17. When
this bit is cleared to 0, pin 17 is configured as DXB output. In this
configuration, data is transmitted on DXB. When this bit is set to 1,
pin 17 is configured as
TCSA
. This overrides the setting of DXBC
(R7—B6). In this configuration, data can only be transmitted on
TDM highway A through the DXA pin (pin 19). If HWYEN (R0—B7)
is 0,
TCSA
is continuously low.
R5
B6
P21CTL
R5
B7
P17CTL
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| T7-121A1 | 制造商:OTTO 功能描述:Toggle Switches ON NONE OFF 1 Pole Standard Bat Handle 制造商:OTTO Engineering Inc 功能描述:Switch Toggle ON None OFF SPST Bat Toggle Screw 16A 115VAC 28VDC Panel Mount with Threads |
| T7-121A2D | 制造商:OTTO 功能描述:Toggle Switches ON NONE OFF 1 Pole Standard LeverLock 制造商:OTTO Engineering Inc 功能描述:1 POLE, SCREW, STD, |
| T7-121A2G | 功能描述:撥動開關 ON NONE OFF 1 Pole Standard LeverLock 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: |
| T7-121A5 | 制造商:OTTO 功能描述:Toggle Switches ON NONE OFF 1 Pole Standard Bat Handle 制造商:OTTO Engineering Inc 功能描述:Switch Toggle ON None OFF SPST Bat Toggle Screw 16A 115VAC 28VDC Panel Mount with Threads |
| T7-121B1 | 功能描述:撥動開關 ON NONE 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: |
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