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參數(shù)資料
| 型號： | XR16L651 |
| 廠商： | Exar Corporation |
| 英文描述： | 2.5V, 3.3V and 5V Low Power UART with 32-Byte FIFO(2.5V, 3.3V和5V 低功耗通用異步接收器/發(fā)送器（帶32字節(jié)先進先出）) |
| 中文描述： | 2.5V，3.3V與5V的低功耗的UART與32字節(jié)的FIFO（2.5伏，3.3伏和5V的低功耗通用異步接收器/發(fā)送器（帶32字節(jié)先進先出）） |
| 文件頁數(shù)： | 9/46頁 |
| 文件大?。?/td> | 516K |
| 代理商： | XR16L651 |
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XR16L651
2.5V, 3.3 AND 5V LOW POWER UART WITH 32-BYTE FIFO
PRELIMINARY
REV. P1.0.0
9
1.1
The PC mode interface includes an on-chip address
decoder and interrupt selection function for the stan-
dard PC COM 1-4 ports addresses. The selection is
made through three input signals: S1, S2 and S3.
The selection summary is shown in Table 1. Although
the on-chip address decoder was designed for PC
PC MODE
applications ranging from 0x278 to 0x3FF, it can fit in-
to an embedded applications by offsetting the ad-
dress lines to the 651. An example is shown in
Figure 6 where the UART is operating from 0xC0F8
to 0xC0FF address space. Operating in the PC mode
eliminates external address decode components.
T
ABLE
1: PC M
ODE
I
NTERFACE
O
N
-
CHIP
A
DDRESS
D
ECODER
AND
I
NTERRUPT
S
ELECTION
.
PCMODE#
INPUT
S3, S2, S1
I
NPUTS
A3-A9 A
DDRESS
L
INES
TO
O
N
-
CHIP
D
ECODER
COM/LPT P
ORT
S
ELECTION
IRQ O
UTPUT
S
ELECTION
0
0 0 0
0x3F8 - 0x3FF
COM-1
IRQB (for PC’s IRQ4)
0
0 0 1
0x2F8 - 0x2FF
COM-2
IRQC (for PC’s IRQ3)
0
0 1 0
0x3E8 - 0x3EF
COM-3
IRQB (for PC’s IRQ4)
0
0 0 0
0x3F8 - 0x3FF
COM-4
IRQB (for PC’s IRQ4)
0
1 0 0
0x2F8 - 0x2FF
COM-1
IRQA (for PC’s IRQn
0
1 0 1
0x3E8 - 0x3EF
COM-2
IRQA (for PC’s IRQn)
0
1 1 0
0x2E8 - 0x2EF
COM-3
IRQA (for PC’s IRQn)
0
1 1 1
0x3F8 - 0x3FF
COM-4
IRQA (for PC’s IRQn)
0
- - -
0x278 - 0x27F
LPT-2
N/A
0
- - -
0x378 - 0x37F
LPT-1
N/A
F
IGURE
6. PC M
ODE
I
NTERFACE
IN
AN
E
MBEDDED
A
PPLICATION
.
D0
D1
D2
D3
D4
D5
D6
D7
A0
A1
A2
A3
A4
A5
A6
A7
A14
A15
AEN#
IOW #
INT
IOR#
RESET
D0
D1
D2
D3
D4
D5
D6
D7
IOW #
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
AEN*
RESET
VCC
CS0
CS1
IM#
AS#
GND
IOR
IOW
IRQA
IRQB
IRQC
PCMODE#
VCC
IOR#
OP1#
RI#
CD#
DSR#
CTS#
RX
DTR#
TX
RTS#
S1
S2
S3
VCC
GND
GND
Embedded Application set to operate
at address 0xC0F8 to 0xC0FF
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| XR16L651CM | 制造商:EXAR 制造商全稱:EXAR 功能描述:2.25V TO 5.5V UART WITH 32-BYTE FIFO |
| XR16L651CM-0A-EVB | 功能描述:UART 接口集成電路 Supports L651 48 ld TQFP, ISA 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 |
| XR16L651CM-F | 功能描述:UART 接口集成電路 UARTW/32BYTEFIFO 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 |
| XR16L651CMTR-F | 制造商:Exar Corporation 功能描述:UART 1-CH 32Byte FIFO 2.5V/3.3V/5V 48-Pin TQFP T/R 制造商:Exar Corporation 功能描述:XR16L651CMTR-F |
| XR16L651IM | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
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