REV. 1.4.3 5V PCI BUS OCTAL UART 17 1.2.2 General Purpose 16-bit Timer/Counter [TIMERMSB, TIMELSB, TIMER, TIMECNTL" />
參數(shù)資料
型號(hào)： XR17C158IV
廠商： Exar Corporation
文件頁(yè)數(shù)： 9/67頁(yè)
文件大?。?/td> 0K
描述： IC UART PCI BUS OCTAL 144LQFP
產(chǎn)品變化通告： Leaded UART, V&I Obsolescence 11/Apr/2011
標(biāo)準(zhǔn)包裝： 60
特點(diǎn)： *
通道數(shù)： 8
FIFO's： 64 字節(jié)
規(guī)程： RS485
電源電壓： 4.5 V ~ 5.5 V
帶自動(dòng)流量控制功能： 是
帶IrDA 編碼器/解碼器： 是
帶故障啟動(dòng)位檢測(cè)功能： 是
帶調(diào)制解調(diào)器控制功能： 是
安裝類型： 表面貼裝
封裝/外殼： 144-LQFP
供應(yīng)商設(shè)備封裝： 144-LQFP（20x20）
包裝： 托盤
xr
XR17C158
REV. 1.4.3
5V PCI BUS OCTAL UART
17
1.2.2
General Purpose 16-bit Timer/Counter [TIMERMSB, TIMELSB, TIMER, TIMECNTL] (DEFAULT
0XXX-XX-00-00)
A 16-bit down-count timer for general purpose timer or counter. Its clock source may be selected from internal
crystal oscillator or externally on pin TMRCK. The timer can be set to be a single-shot for a one-time event or
re-triggerable for continue interval. An interrupt may be generated in the Interrupt Register bits [10:8] when the
timer times out. It is controlled through 4 configuration registers [TIMERCNTL, TIMER, TIMELSB,
TIMERMSB]. These registers provide start/stop and re-triggerable or one-shot operation. The time-out output
of the Timer can be set to generate an interrupt for system or event alarm.
TIMER [15:8] Reserved
FIGURE 5. TIMER/COUNTER CIRCUIT
TABLE 7: TIMER CONTROL REGISTERS
TIMERCNTL [0]
Logic 0 (default) disables Timer-Counter interrupt and logic 1 enables the interrupt, reading the TIM-
ERCNTL register clears the interrupt.
TIMERCNLT [1]
Logic 0 (default) stops/pauses the timer and logic 1 starts/re-starts the timer/counter.
TIMERCNTL [2]
Logic 0 (default) selects re-triggerable timer function and logic 1 selects one-shot (timer function).
TIMERCNTL [3]
Logic 0 (default) selects internal and logic one selects external clock to the timer/counter.
TIMERCNTL [4]
Routes the Timer-Counter interrupt to MPIO[0] if MPIOSEL[0]=0 for external event control.
TIMERCNTL [7:5] Reserved (defaults to zero)
TMRCK
OSC. CLOCK
TIMERCNTL [3]
16-Bit
Timer/Counter
TIMERCNTL [2]
Re-trigger
Single-shot
TIMERCNTL [1]
Start/Stop
TIMERCNTL [0]
Timer Interrupt, Ch-0 INT=7
Time-out
Timer Interrupt Enable
Single/Re-triggerable
TIMERMSB and TIMERLSB
(16-bit Value)
0
1
0
1
0
1
No Interrupt
Clock
Select
TIMERCNTL [4]
0
1
MPIO[0]
MPIOLVL[0]
TIMERCNTL Register
Rsvd
MPIO[0]
Control
Clock
Select
Single/
Re-trigger
Start/
Stop
INT
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
V24B24H150B2 CONVERTER MOD DC/DC 24V 150W
VI-B74-IX-F3 CONVERTER MOD DC/DC 48V 75W
MS27474T14B35SD CONN RCPT 37POS JAM NUT W/SCKT
XR17C158CV IC UART PCI BUS OCTAL 144LQFP
V24B24H150B CONVERTER MOD DC/DC 24V 150W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR17C158IV-F 功能描述:UART 接口集成電路 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
XR17C158IVTR-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:XR17C158IVTR-F
XR17D152 制造商:EXAR 制造商全稱:EXAR 功能描述:UNIVERSAL (3.3V AND 5V) PCI BUS DUAL UART
XR17D152CM 制造商:EXAR 制造商全稱:EXAR 功能描述:UNIVERSAL (3.3V AND 5V) PCI BUS DUAL UART
XR17D152CM-0A-EVB 功能描述:界面開(kāi)發(fā)工具 Supports D152 100 ld TQFP, PCI Interface RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評(píng)估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*