参数资料
| 型号： | XR17D158IV-F |
| 厂商： | Exar Corporation |
| 文件页数： | 3/73页 |
| 文件大小： | 0K |
| 描述： | IC UART PCI BUS OCTAL 144LQFP |
| 产品培训模块： | UART Product Overview |
| 标准包装： | 60 |
| 特点： | * |
| 通道数： | 8 |
| FIFO's： | 64 字节 |
| 规程： | RS485 |
| 电源电压： | 3.3V，5V |
| 带自动流量控制功能： | 是 |
| 带IrDA 编码器/解码器： | 是 |
| 带故障启动位检测功能： | 是 |
| 带调制解调器控制功能： | 是 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 144-LQFP |
| 供应商设备封装： | 144-LQFP（20x20） |
| 包装： | 托盘 |
| 其它名称： | 1016-1292 |
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XR17D158
REV. 1.2.2
UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART
11
2.0 XR17D158 REGISTERS
The XR17D158 UART has three different sets of registers as shown in Figure 5. The PCI local bus
configuration space registers are for plug-and-play auto-configuration when connecting the device to a the PCI
bus. This auto-configuration feature makes installation very easy into a PCI system and it is part of the PCI
local bus specification. The second register set is the device configuration registers that are accessible directly
from the PCI bus for programming general operating conditions of the device and monitoring the status of
various functions. These registers are mapped into 4K of the PCI bus memory address space. These functions
include all 8 channel UART’s interrupt control and status, 16-bit general purpose timer control and status,
multipurpose inputs/outputs control and status, sleep mode, soft-reset, and device identification and revision.
And lastly, each UART channel has its own set of internal UART configuration registers for its own operation
control and status reporting. All 8 sets of channel registers are embedded inside the device configuration
registers space, which provides faster access. The following paragraphs describe all 3 sets of registers in
detail.
2.1
PCI LOCAL BUS CONFIGURATION SPACE REGISTERS
The PCI local bus configuration space registers are responsible for setting up the device’s operating
environment in the PCI local bus. The pre-defined operating parameters of the device is read by the PCI bus
plug-and-play auto-configuration manager in the operating system. After the PCI bus has collected all data
from every device/card on the bus, it defines and downloads the memory mapping information to each device/
card about their individual operation memory address location and conditions. The operating memory mapped
address location is downloaded into the Base Address Register (BAR) register, 0x10. The plug-and-play auto
configuration feature is only available when an external 93C46 EEPROM is used. The EEPROM contains the
device vendor and sub-vendor data required by the auto-configuration setup.
FIGURE 5. THE XR17D158 REGISTER SETS
C hannel 0
IN T , M PIO ,
TIM ER ,REG
D evice C onfig ur ation and
U AR T [7:0]
C onfig ur ation
R eg ister s ar e mapped on
to the Base Addr ess
R eg ister ( BAR ) in a 4K-
byte of memor y addr ess
space
PC I Local Bus
Inter face
C hannel 0
C hannel 1
C hannel 2
C hannel 3
C hannel 4
C hannel 5
C hannel 6
C hannel 7
D evice
C onfig ur ation R eg ister s
8 channel
Inter r upts,
M ultipur pose
I/O s,
16- bit
T imer /C ounter ,
Sleep, R eset, D VID , D R EV
U AR T [7:0]
C onfig ur ation
Reg ister s
16550 C ompatible and EXAR
Enhanced
R eg ister s
PC I Local Bus
C onfig ur ation
Space
R eg ister s for Plug -
and- Play
Auto
C onfig ur ation
PCI REG S-1
Vendor
and Sub- vendor
ID
and Pr oduct M odel N umber
in Exter nal EEPR O M
0x00 00
0x02 00
0x04 00
0x06 00
0x08 00
0x0A 0 0
0x0C 00
0x0E00
0x00 80
0x0F F F
相关PDF资料 |
PDF描述 |
|---|---|
| XR17V252IM | IC UART PCI BUS DUAL 100TQFP |
| XR17V254IV-F | IC UART PCI BUS QUAD 144LQFP |
| XR17V258IV-F | IC UART PCI BUS OCTAL 144LQFP |
| XR17V352IB113-F | IC UART PCIE 256B DUAL 113FPBGA |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 制造商全称:EXAR 功能描述:3.3V PCI BUS DUAL UART |
| XR17L152CM | 制造商:EXAR 制造商全称:EXAR 功能描述:3.3V PCI BUS DUAL UART |
| XR17L152IM | 制造商:EXAR 制造商全称:EXAR 功能描述:3.3V PCI BUS DUAL UART |
| XR17L154 | 制造商:EXAR 制造商全称:EXAR 功能描述:3.3V PCI BUS QUAD UART |
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