參數(shù)資料
型號： XR17D158
廠商： Exar Corporation
英文描述： UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART
中文描述： 通用（3.3V和5V）PCI總線八進(jìn)制的UART
文件頁數(shù)： 70/72頁
文件大?。?/td> 1520K
代理商： XR17D158
XR17D158
REV. 1.2.1
xr
5V PCI BUS OCTAL UART
I
TABLE OF CONTENTS
GENERAL DESCRIPTION.................................................................................................1
A
PPLICATIONS
................................................................................................................................................1
F
EATURES
.....................................................................................................................................................1
F
IGURE
1. B
LOCK
D
IAGRAM
............................................................................................................................................................. 1
F
IGURE
2. P
IN
O
UT
OF
THE
D
EVICE
.................................................................................................................................................. 2
ORDERING
INFORMATION
.................................................................................................................................2
PIN DESCRIPTIONS ..........................................................................................................3
FUNCTIONAL DESCRIPTION ...........................................................................................8
PCI Local Bus Interface...............................................................................................................................................8
PCI Local Bus Configuration Space
Registers............................................................................................................8
EEPROM Interface......................................................................................................................................................8
1.0 APPLICATION EXAMPLES ...................................................................................................................9
T
ABLE
1: V
ALID
C
OMBINATIONS
OF
VCC
AND
VIO S
UPPLY
V
OLTAGES
.............................................................................................. 9
F
IGURE
3. T
YPICAL
A
PPLICATION
FOR
A
U
NIVERSAL
A
DD
-
IN
C
ARD
.................................................................................................... 9
F
IGURE
4. T
YPICAL
A
PPLICATIONS
IN
AN
E
MBEDDED
S
YSTEM
.......................................................................................................... 10
2.0 XR17D158 REGISTERS .......................................................................................................................11
F
IGURE
5. T
HE
XR17D158 R
EGISTER
S
ETS
................................................................................................................................... 11
2.1 PCI LOCAL BUS CONFIGURATION SPACE REGISTERS .......................................................................... 11
T
ABLE
2: PCI L
OCAL
B
US
C
ONFIGURATION
S
PACE
R
EGISTERS
....................................................................................................... 12
2.2 DEVICE CONFIGURATION REGISTER SET ................................................................................................. 13
T
ABLE
3: XR17D158 D
EVICE
C
ONFIGURATION
R
EGISTERS
............................................................................................................. 14
T
ABLE
4: D
EVICE
C
ONFIGURATION
R
EGISTERS
SHOWN
IN
BYTE
ALIGNMENT
................................................................................... 16
T
ABLE
5: D
EVICE
C
ONFIGURATION
R
EGISTERS
SHOWN
IN
DWORD
ALIGNMENT
............................................................................... 16
2.2.1 THE INTERRUPT STATUS REGISTER ..................................................................................................................... 17
F
IGURE
6. T
HE
G
LOBAL
I
NTERRUPT
R
EGISTER
, INT0, INT1, INT2
AND
INT3.................................................................................. 18
T
ABLE
6: UART C
HANNEL
[7:0] I
NTERRUPT
S
OURCE
E
NCODING
..................................................................................................... 18
T
ABLE
7: UART C
HANNEL
[7:0] I
NTERRUPT
C
LEARING
: .................................................................................................................. 18
2.2.2 GENERAL PURPOSE 16-BIT TIMER/COUNTER [TIMERMSB, TIMELSB, TIMER, TIMECNTL] (DEFAULT 0XXX-XX-
00-00).............................................................................................................................................................................. 19
F
IGURE
7. T
IMER
/C
OUNTER
CIRCUIT
............................................................................................................................................... 19
T
ABLE
8: TIMER CONTROL R
EGISTERS
...................................................................................................................................... 19
2.2.3 8XMODE [7:0] (DEFAULT 0X00)................................................................................................................................ 20
2.2.4 REGA [15:8] RESERVED ........................................................................................................................................... 20
2.2.5 RESET [23:16] (DEFAULT 0X00)............................................................................................................................... 20
2.2.6 SLEEP [31:24] (DEFAULT 0X00)............................................................................................................................... 21
2.2.7 DEVICE IDENTIFICATION AND REVISION............................................................................................................... 21
2.2.8 REGB REGISTER ....................................................................................................................................................... 22
2.2.9 MULTI-PURPOSE INPUTS AND OUTPUTS.............................................................................................................. 22
2.2.10 MPIO REGISTER ...................................................................................................................................................... 22
F
IGURE
8. M
ULTIPURPOSE
INPUT
/
OUTPUT
INTERNAL
CIRCUIT
........................................................................................................... 23
3.0 CRYSTAL OSCILLATOR / BUFFER ...................................................................................................25
F
IGURE
9. T
YPICAL
OSCILLATOR
CONNECTIONS
............................................................................................................................... 25
F
IGURE
10. E
XTERNAL
C
LOCK
C
ONNECTION
FOR
E
XTENDED
D
ATA
R
ATE
........................................................................................ 25
4.0 TRANSMIT AND RECEIVE DATA .......................................................................................................26
4.1 FIFO
DATA LOADING AND UNLOADING THROUGH THE DEVICE CONFIGURATION REGISTERS IN 32-BIT
FORMAT. ........................................................................................................................................................ 26
4.1.1 NORMAL RX FIFO
DATA UNLOADING AT LOCATIONS 0X100, 0X300, 0X500, 0X700....................................... 26
4.1.2 SPECIAL RX FIFO
DATA UNLOADING AT LOCATIONS 0X180, 0X380, 0X580, AND 0X780.............................. 27
4.1.3 TX FIFO
DATA LOADING AT LOCATIONS 0X100, 0X300, 0X500, 0X700, 0X900, 0XB00, 0XD00, 0XF00.......... 27
4.2 FIFO
DATA LOADING AND UNLOADING THROUGH THE UART CHANNEL REGISTERS, THR AND RHR IN
8-BIT FORMAT. .............................................................................................................................................. 28
T
ABLE
9: T
RANSMIT
AND
R
ECEIVE
D
ATA
R
EGISTER
IN
B
YTE
FORMAT
, 16C550
COMPATIBLE
............................................................ 28
5.0 UART ....................................................................................................................................................29
5.1 PROGRAMMABLE BAUD RATE GENERATOR ........................................................................................... 29
F
IGURE
11. B
AUD
R
ATE
G
ENERATOR
............................................................................................................................................. 29
T
ABLE
10: T
YPICAL
DATA
RATES
WITH
A
14.7456 MH
Z
CRYSTAL
OR
EXTERNAL
CLOCK
AT
16X S
AMPLING
........................................ 30
5.2 TRANSMITTER ............................................................................................................................................... 30
5.2.1 TRANSMIT HOLDING REGISTER (THR) - WRITE-ONLY......................................................................................... 30
5.2.2 TRANSMITTER OPERATION IN NON-FIFO MODE.................................................................................................. 30
F
IGURE
12. T
RANSMITTER
O
PERATION
IN
NON
-FIFO M
ODE
............................................................................................................ 31
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參數(shù)描述
XR17D158_05 制造商:EXAR 制造商全稱:EXAR 功能描述:UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART
XR17D158CV 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
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
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