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參數(shù)資料
| 型號： | XR17V358IB-0A-EVB |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 17/68頁 |
| 文件大?。?/td> | 0K |
| 描述： | EVAL BOARD FOR XR17V358 |
| 產(chǎn)品培訓(xùn)模塊： | PCIe UARTs UART Product Overview |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 主要目的： | 接口，UART |
| 嵌入式： | 否 |
| 已用 IC / 零件： | XR17V358 |
| 已供物品： | 板 |
| 相關(guān)產(chǎn)品： | 1016-1294-ND - IC UART PCIE OCTAL 176FPBGA |
| 其它名稱： | 1016-1293 |
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FIGURE 6. TIMER OUTPUT IN ONE-SHOT AND RE-TRIGGERABLE MODES
TIMER Output in
Re-triggerable
Mode
TIMER Output in
One-Shot Mode
After 'P'
clocks
START TIMER
COMMAND ISSUED
START TIMER
COMMAND ISSUED
'N' Clocks
STOP TIMER
COMMAND ISSUED
START TIMER COMMANDS ISSUED: LESS THAN 'N'
CLOCKS BETWEEN SUCCESSIVE COMMANDS
< 'N' Clocks
After 'P'
clocks
After 'P'
clocks
After 'P'
clocks
After 'P'
clocks
After 'Q'
clocks
After 'Q'
clocks
After 'Q'
clocks
After 'Q'
clocks
< 'N' Clocks
XR17V358
24
HIGH PERFORMANCE OCTAL PCI EXPRESS UART
REV. 1.0.4
Timer Interrupt
In the one-shot mode, the Timer will issue an interrupt upon timing out which is ’N’ clocks after the Timer is
started. In the re-triggerable mode, the Timer will keep issuing an interrupt every ’N’ clocks which is on every
rising edge of the Timer output. The Timer interrupt can be cleared by reading the TIMERCNTL register or
when a Timer Reset command is issued which brings the Timer back to its default settings. The TIMERCNTL
will read a value of 0x01 when the Timer interrupt is enabled and there is a pending interrupt. It reads a value
of 0x00 at all other times. Stopping the Timer does not clear the interrupt and neither does subsequent re-
starting.
FIGURE 7. INTERRUPT OUTPUT (ACTIVE LOW) IN ONE-SHOT AND RE-TRIGGERABLE MODES
One-shot Mode
Timer Started
Timer Timed
Out
TIMERCNTL
read
Re-triggerable
Mode
Timer Timed
Out
TIMERCNTL
read
Timer Timed
Out
1.4.3
8XMODE [7:0] (default 0x00)
Each bit selects 8X or 16X sampling rate for that UART channel. The 8XMODE register is accessible from the
Device Configuration Registers in all UART channels but the UART channel can only control the bit for that
channel. For example, bit [0] is for channel 0 and can only be controlled by channel 0. All other bits are read-
only in channel 0. Logic 0 (default) selects normal 16X sampling (and 4XMODE = 0x00) with logic one selects
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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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| XR17V358IB176-F | 功能描述:UART 接口集成電路 8 Channel PCIe UART w/256 Byte FIFO 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 |
| XR17V358IB176-F | 制造商:Exar Corporation 功能描述:IC OCTAL UART 25MBPS 3.6V 176-BGA |
| XR17V358IB-E4-EVB | 功能描述:界面開發(fā)工具 Eval Board for XR17V358IB-E4 RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| XR17V358IB-E8-EVB | 功能描述:界面開發(fā)工具 Eval Board for XR17V358IB-E8 RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| XR1857SN | 制造商:Electro-Term/Hollingsworth 功能描述: |
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