參數(shù)資料
型號(hào): T9000
廠商: Lineage Power
英文描述: ISDN Network Termination Node (NTN) Device(ISDN網(wǎng)絡(luò)終端節(jié)點(diǎn)器件)
中文描述: ISDN網(wǎng)絡(luò)終端節(jié)點(diǎn)(新界西)設(shè)備(ISDN網(wǎng)網(wǎng)絡(luò)終端節(jié)點(diǎn)器件)
文件頁(yè)數(shù): 25/126頁(yè)
文件大?。?/td> 1523K
代理商: T9000
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Lucent Technologies Inc.
25
Advance Data Sheet
April 2000
ISDN Network Termination Node (NTN) Device
T9000
6 Functional Modules
(continued)
6.14 Serial Port Timing
As per the Intel* 80C32 data book, there are two inputs to the UART module, TXclock and RXclock, which control
the transmission and reception of serial data, respectively. For each of these inputs, it is possible to independently
select either timer 1 or timer 2 as the source. This selection is controlled by the RCLK and TCLK bits in the SFR
register T2CON, which controls the mode of operation of timer 2. The RCLK/TCLK options are shown in Table 18.
Table 18. Standard 80C32 RCLK/TCLK Options
The UART module in the Lucent 80C32 has only one clock input, which is used to control both reception and trans-
mission. This limitation results in the following truth table (Table 19), which illustrates that both RXclock and
TXclock must be drawn from the same source, either timer 1 or timer 2, depending on the value selected for TCLK.
Table 19. Lucent 80C32 RCLK/TCLK Options
The only cases impacted are cases where the UART transmission and reception functions have to be performed
with different clocks. Completely independent selection of RXclock and TXclock is not possible, as is seen by com-
paring Table 18 and Table 19.
* Intelis a registered trademark of Intel Corporation.
RCLK
0
0
1
1
TCLK
0
1
0
1
RXclock
timer 1
timer 1
timer 2
timer 2
TXclock
timer 1
timer 2
timer 1
timer 2
RCLK
0
1
TCLK
0
1
RXclock
timer 1
timer 2
TXclock
timer 1
timer 2
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T9006 功能描述:罩類、盒類及殼類產(chǎn)品 15 x 14 x 3-1/2 (2.96cf) RoHS:否 制造商:Bud Industries 產(chǎn)品:Boxes 外部深度:6.35 mm 外部寬度:6.35 mm 外部高度:2.56 mm NEMA 額定值: IP 等級(jí): 材料:Acrylonitrile Butadiene Styrene (ABS) 顏色:Red
T9007 功能描述:罩類、盒類及殼類產(chǎn)品 13 1/8 x 13 1/8 x 3" 6 COMPARTMENTS RoHS:否 制造商:Bud Industries 產(chǎn)品:Boxes 外部深度:6.35 mm 外部寬度:6.35 mm 外部高度:2.56 mm NEMA 額定值: IP 等級(jí): 材料:Acrylonitrile Butadiene Styrene (ABS) 顏色:Red
T9008 制造商:Nortools International Ltd 功能描述:HSS METRIC DIE SET,M3-M12
T900BK 功能描述:罩類、盒類及殼類產(chǎn)品 of Box Dividers Clear RoHS:否 制造商:Bud Industries 產(chǎn)品:Boxes 外部深度:6.35 mm 外部寬度:6.35 mm 外部高度:2.56 mm NEMA 額定值: IP 等級(jí): 材料:Acrylonitrile Butadiene Styrene (ABS) 顏色:Red