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參數(shù)資料
| 型號： | XR17D158CV |
| 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 |
| 文件頁數(shù)： | 11/72頁 |
| 文件大?。?/td> | 1520K |
| 代理商： | XR17D158CV |
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REV. 1.2.1
UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART
XR17D158
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
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.
PCI LOCAL BUS CONFIGURATION SPACE REGISTERS
F
IGURE
5. T
HE
XR17D158 R
EGISTER
S
ETS
Channel 0
INT, M PIO,
TIM ER, REG
Device Configuration and
UART[7:0]
Config uration
Registers are mapped on
to the Base Address
Reg ister (BAR) in a 4K-
byte of memory address
space
PCI Local Bus
Interface
Channel 0
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Channel 6
Channel 7
Device
Configuration Reg isters
8 channel Interrupts,
M ultipurpose
16-bit
Timer/Counter,
Sleep, Reset, DVID, DREV
I/Os,
UART[7:0]
Config uration
Registers
16550 Compatible and EXAR
Enhanced
Registers
PCI Local Bus
Config uration
Registers for Plug -
and-Play
Config uration
Space
Auto
PCIREG S-1
Vendor and Sub-vendor ID
and Product M odel Number
in External EEPROM
0 x0 00 0
0 x0 20 0
0 x0 40 0
0 x0 60 0
0 x0 80 0
0 x0 A 00
0x0C00
0x0E00
0 x0 08 0
0x0FFF
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR17D158CV-0A-EVB | 功能描述:界面開發(fā)工具 Supports D158 144 ld TQFP, PCI Interface 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 |
| XR17D158CV-F | 功能描述:UART 接口集成電路 3.3V-5V 64B FIFO temp 0C to 70C; 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 |
| XR17D158CV-F-SIWI | 制造商:Exar Corporation 功能描述:FOR WILLIAMS GAMING THEIR CM'S 制造商:EXAR 功能描述:XR17D158CV-F-SIWI 制造商:EXAR 功能描述:FOR WILLIAMS GAMING THEIR CM'S |
| XR17D158CVTR-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:XR17D158CVTR-F |
| XR17D158IV | 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 |
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