參數(shù)資料
型號: XR17C158
廠商: Exar Corporation
英文描述: PCI Bus Octal UART(八通用異步接收器/發(fā)送器(滿足通訊系統(tǒng)中PCI總線和高帶寬要求))
中文描述: PCI總線八路的UART(八通用異步接收器/發(fā)送器(滿足通訊系統(tǒng)中的PCI總線和高帶寬要求))
文件頁數(shù): 25/51頁
文件大小: 685K
代理商: XR17C158
XR17C158
PCI BUS OCTAL UART
PRELIMINARY
REV. 1.0.0
25
delivered to the input of the decoder. This option sup-
ports active low instead of normal active high pulse
from some infrared modules on the market.
4.4
Each UART channel provides an internal loopback
capability for system diagnostic. The internal loop-
back mode
is enabled by setting MCR register bit-4 to
logic 1. All regular UART functions operate normally.
Figure 11
shows how the modem port signals are re-
configured. Transmit data from the transmit shift reg-
I
NTERNAL
L
OOPBACK
ister output is internally routed to the receive shift reg-
ister input allowing the system to receive the same
data that it was sending. The TX pin is held at logic 1
or mark condition while RTS# and DTR# are de-as-
serted, and CTS#, DSR# CD# and RI# inputs are ig-
nored.
F
IGURE
10. I
NFRARED
T
RANSMIT
D
ATA
E
NCODING
AND
R
ECEIVE
D
ATA
D
ECODING
Character
Data Bits
S
S
0
0
0
0
0
1
1
1
1
1
Bit Time
1/16 Clock Delay
IRdecoder-
RX Data
Receive
IR Pulse
(RX pin)
Character
Data Bits
S
S
0
0
0
0
0
1
1
1
1
1
TX Data
Transmit
IR Pulse
(TX Pin)
Bit Time
1/2 Bit Time
3/16 Bit Time
IrEncoder-
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR17C158CV 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
XR17C158CV-0A-EVB 功能描述:UART 接口集成電路 Supports C158 144 ld TQFP, PCI Interface 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
XR17C158CV-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
XR17C158CVTR-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:XR17C158CVTR-F
XR17C158IV 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