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参数资料
型号： XR17D154CV-0A-EVB
厂商： Exar Corporation
文件页数： 64/69页
文件大小： 0K
描述： EVAL BOARD FOR XR17D154 144TQFP
标准包装： 1
系列： *
xr
XR17D154
REV. 1.2.2
UNIVERSAL (3.3V AND 5V) PCI BUS QUAD UART
I
TABLE OF CONTENTS
GENERAL DESCRIPTION................................................................................................. 1
APPLICATIONS ............................................................................................................................................... 1
FEATURES......................................................................................................................... 1
FIGURE 1. BLOCK DIAGRAM ............................................................................................................................................................. 1
ORDERING INFORMATION
................................................................................................................................2
FIGURE 2. PIN OUT OF THE DEVICE.................................................................................................................................................. 2
PIN DESCRIPTIONS .......................................................................................................... 3
PCI LOCAL BUS INTERFACE .................................................................................................................... 3
MODEM OR SERIAL I/O INTERFACE........................................................................................................ 3
ANCILLARY SIGNALS ................................................................................................................................ 4
FUNCTIONAL DESCRIPTION ........................................................................................... 7
PCI Local Bus Interface............................................................................................................................................... 7
PCI Local Bus Configuration Space Registers ............................................................................................................ 7
EEPROM Interface...................................................................................................................................................... 7
1.0 APPLICATION EXAMPLES .................................................................................................................. 8
TABLE 1: VALID COMBINATIONS OF VCC AND VIO SUPPLY VOLTAGES .............................................................................................. 8
FIGURE 3. TYPICAL APPLICATION FOR A UNIVERSAL ADD-IN CARD .................................................................................................... 8
FIGURE 4. TYPICAL APPLICATIONS IN AN EMBEDDED SYSTEM............................................................................................................ 9
2.0 XR17D154 REGISTERS ...................................................................................................................... 10
FIGURE 5. THE XR17D154 REGISTER SETS .................................................................................................................................. 10
2.1 PCI LOCAL BUS CONFIGURATION SPACE REGISTERS .......................................................................... 10
TABLE 2: PCI LOCAL BUS CONFIGURATION SPACE REGISTERS ....................................................................................................... 11
2.2 DEVICE CONFIGURATION REGISTER SET ................................................................................................ 12
TABLE 3: XR17D154 DEVICE CONFIGURATION REGISTERS............................................................................................................. 13
TABLE 4: DEVICE CONFIGURATION REGISTERS SHOWN IN BYTE ALIGNMENT ................................................................................... 14
TABLE 5: DEVICE CONFIGURATION REGISTERS SHOWN IN DWORD ALIGNMENT .............................................................................. 14
2.2.1 THE INTERRUPT STATUS REGISTER ..................................................................................................................... 15
FIGURE 6. THE GLOBAL INTERRUPT REGISTER, INT0, INT1, INT2 AND INT3 .................................................................................. 16
TABLE 6: UART CHANNEL [3:0] INTERRUPT SOURCE ENCODING..................................................................................................... 16
TABLE 7: UART CHANNEL [3:0] INTERRUPT CLEARING: .................................................................................................................. 17
2.2.2 GENERAL PURPOSE 16-BIT TIMER/COUNTER [TIMERMSB, TIMELSB, TIMER, TIMECNTL] (DEFAULT 0XXX-XX-
00-00) ............................................................................................................................................................................. 17
FIGURE 7. TIMER/COUNTER CIRCUIT............................................................................................................................................... 17
TABLE 8: TIMER CONTROL REGISTERS ...................................................................................................................................... 17
2.2.3 8XMODE [7:0] - (DEFAULT 0X00) ............................................................................................................................. 18
2.2.4 REGA [15:8] RESERVED ........................................................................................................................................... 18
2.2.5 RESET [23:16] - (DEFAULT 0X00)............................................................................................................................. 18
2.2.6 SLEEP [31:24] - (DEFAULT 0X00)............................................................................................................................ 19
2.2.7 DEVICE IDENTIFICATION AND REVISION............................................................................................................... 20
2.2.8 REGB REGISTER ....................................................................................................................................................... 20
2.2.9 MULTI-PURPOSE INPUTS AND OUTPUTS .............................................................................................................. 20
2.2.10 MPIO REGISTER ...................................................................................................................................................... 21
FIGURE 8. MULTIPURPOSE INPUT/OUTPUT INTERNAL CIRCUIT........................................................................................................... 21
3.0 CRYSTAL OSCILLATOR / BUFFER ................................................................................................... 23
FIGURE 9. TYPICAL OSCILLATOR CONNECTIONS............................................................................................................................... 23
FIGURE 10. EXTERNAL CLOCK CONNECTION FOR EXTENDED DATA RATE........................................................................................ 23
4.0 TRANSMIT AND RECEIVE DATA ...................................................................................................... 24
4.1 DATA LOADING AND UNLOADING VIA 32-BIT PCI BURST TRANSFERS ............................................... 24
4.1.1 NORMAL RX FIFO DATA UNLOADING AT LOCATIONS 0X100, 0X300, 0X500, 0X700....................................... 24
4.1.2 SPECIAL RX FIFO DATA UNLOADING AT LOCATIONS 0X180, 0X380, 0X580, AND 0X780 .............................. 25
4.1.3 TX FIFO DATA LOADING AT LOCATIONS 0X100, 0X300, 0X500, 0X700 ............................................................. 26
4.2 FIFO DATA LOADING AND UNLOADING THROUGH THE UART CHANNEL REGISTERS, THR AND RHR IN
8-BIT FORMAT .............................................................................................................................................. 26
TABLE 9: TRANSMIT AND RECEIVE DATA REGISTER IN BYTE FORMAT, 16C550 COMPATIBLE ............................................................ 26
5.0 UART .................................................................................................................................................... 27
5.1 PROGRAMMABLE BAUD RATE GENERATOR ........................................................................................... 27
FIGURE 11. BAUD RATE GENERATOR ............................................................................................................................................. 27
TABLE 10: TYPICAL DATA RATES WITH A 14.7456 MHZ CRYSTAL OR EXTERNAL CLOCK AT 16X SAMPLING........................................ 28
5.2 TRANSMITTER ............................................................................................................................................... 28
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相关代理商/技术参数
参数描述
XR17D154CV-F 功能描述:UART 接口集成电路 3.3V-5V 64B FIFO temp 0C to 70C; UART RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel
XR17D154CVTR-F 制造商:Exar Corporation 功能描述:UART 4-CH 64Byte FIFO 3.3V/5V 144-Pin LQFP T/R 制造商:Exar Corporation 功能描述:XR17D154CVTR-F
XR17D154IV 功能描述:UART 接口集成电路 UART RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel
XR17D154IV-F 功能描述:UART 接口集成电路 3.3V-5V 64B FIFO temp -45 to 85C;UART RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel
XR17D154IVTR-F 制造商:Exar Corporation 功能描述:UART 4-CH 64Byte FIFO 3.3V/5V 144-Pin LQFP T/R 制造商:Exar Corporation 功能描述:XR17D154IVTR-F
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