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參數(shù)資料
| 型號(hào)： | XR17D158IV |
| 廠商： | EXAR CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART |
| 中文描述： | 8 CHANNEL(S), 6.25M bps, SERIAL COMM CONTROLLER, PQFP144 |
| 封裝： | 20 X 20 MM, 1.40 MM HEIGHT, TQFP-144 |
| 文件頁(yè)數(shù)： | 20/72頁(yè) |
| 文件大?。?/td> | 1520K |
| 代理商： | XR17D158IV |
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XR17D158
UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART
xr
REV. 1.2.1
20
TIMERMSB [31:24] and TIMERLSB [23:16]
TIMERMSB and TIMERLSB form a 16-bit value. The least-significant bit of the timer is being bit [0] of the
TIMERLSB with most-significant-bit being bit [7] in TIMERMSB. Notice that these registers do not hold the
current counter value when read. Reading the TIMERCNTL register will clear its interrupt. Default value is zero
(timer disabled) upon powerup and reset.
2.2.3
Each bit selects 8X or 16X sampling rate for that UART channel, bit-0 is channel 0. Logic 0 (default) selects
normal 16X sampling with logic one selects 8X sampling rate. Transmit and receive data rates will double by
selecting 8X.
8XMODE [7:0] (default 0x00)
2.2.4
2.2.5
The 8-bit Reset register [RESET] provides the software with the ability to reset the UART(s) when there is a
need. Each bit is self-resetting after it is written a logic 1 to perform a reset to that channel. All registers in that
channel will be reset to the default condition, see
Table 20
for details. Bit-0 =1 resets UART channel 0 with bit-
7=1 resets channel 7.
REGA [15:8] Reserved
RESET [23:16] (default 0x00)
TIMERMSB Register
Bit-15 Bit-14 Bit-13 Bit-12 Bit-11 Bit-10 Bit-9 Bit-8
TIMERLSB Register
Bit-7 Bit-6 Bit-5 Bit-4 Bit-3 Bit-2 Bit-1 Bit-0
16-Bit Timer/Counter Programmable Registers
Ch-6
Ch-7
Ch-5 Ch-4 Ch-3 Ch-2 Ch-1 Ch-0
8XMODE Register
Individual UART Channel 8X Clock Mode Enable
Bit-7 Bit-6 Bit-5 Bit-4 Bit-3 Bit-2 Bit-1 Bit-0
Ch-6
Ch-7
Ch-5 Ch-4 Ch-3 Ch-2 Ch-1 Ch-0
RESET Register
Individual UART Channel Reset Enable
Bit-7 Bit-6 Bit-5 Bit-4 Bit-3 Bit-2 Bit-1 Bit-0
相關(guān)PDF資料 |
PDF描述 |
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| XR17D158 | UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART |
| XR17D158CV | UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART |
| XR17L152IM | CAP .068UF 400V PEN FILM 2825 5% |
| XR17L152 | 3.3V PCI BUS DUAL UART |
| XR17L152CM | 3.3V PCI BUS DUAL UART |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR17D158IV-F | 功能描述:UART 接口集成電路 3.3V-5V 64B FIFO temp -45 to 85C;UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| XR17D158IVTR-F | 制造商:Exar Corporation 功能描述:UART 8-CH 64Byte FIFO 5V 144-Pin LQFP T/R 制造商:Exar Corporation 功能描述:XR17D158IVTR-F |
| XR17L152 | 制造商:EXAR 制造商全稱:EXAR 功能描述:3.3V PCI BUS DUAL UART |
| XR17L152CM | 制造商:EXAR 制造商全稱:EXAR 功能描述:3.3V PCI BUS DUAL UART |
| XR17L152IM | 制造商:EXAR 制造商全稱:EXAR 功能描述:3.3V PCI BUS DUAL UART |
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