參數(shù)資料
型號： ST16C650
廠商： Exar Corporation
英文描述： Voltage Regulator IC; Output Current Max:350mA; Supply Voltage Max:6V; Package/Case:8-TSSOP; Output Current:350mA; Output Voltage:3.3V; Current Rating:30.05A; Leaded Process Compatible:Yes; Output Voltage Max:3.3V RoHS Compliant: Yes
中文描述： 2.90V至5.5V UART的32字節(jié)FIFO
文件頁數(shù)： 29/53頁
文件大?。?/td> 666K
代理商： ST16C650
á
REV. 5.0.0
ST16C650A
2.90V TO 5.5V UART WITH 32-BYTE FIFO
29
FCR[2]: TX FIFO Reset
This bit is only active when FCR bit-0 is a ‘1’.
Logic 0 = No transmit FIFO reset (default).
Logic 1 = Reset the transmit FIFO pointers and FIFO level counter logic (the transmit shift register is not
cleared or altered). This bit will return to a logic 0 after resetting the FIFO.
FCR[3]: DMA Mode Select
Controls the behavior of the TXRDY# and RXRDY# pins.
See “DMA Mode” on page 11.
Logic 0 = DMA Mode disabled (default).
Logic 1 = DMA Mode enabled.
FCR[5:4]: Transmit FIFO Trigger Select
(logic 0 = default, TX trigger level = one)
These 2 bits set the trigger level for the transmit FIFO interrupt. The UART will issue a transmit interrupt when
the number of characters in the FIFO falls below the selected trigger level, or when it gets empty in case that
the FIFO did not get filled over the trigger level on last re-load.
Table 10
below shows the selections. EFR bit-4
must be set to ‘1’ before these bits can be accessed.
FCR[7:6]: Receive FIFO Trigger Select
(logic 0 = default, RX trigger level =1).
The FCTR Bits 6-7 are associated with these 2 bits. These 2 bits are used to set the trigger level for the
receiver FIFO interrupt.
Table 10
shows the complete selections..
4.6
The Line Control Register is used to specify the asynchronous data communication format. The word or
character length, the number of stop bits, and the parity are selected by writing the appropriate bits in this
register.
LCR[1:0]: TX and RX Word Length Select
These two bits specify the word length to be transmitted or received.
Line Control Register (LCR) - Read/Write
T
ABLE
10: T
RANSMIT
AND
R
ECEIVE
FIFO T
RIGGER
L
EVEL
S
ELECTION
WITH
AUTO
RTS
HYSTERESIS
FCR
B
IT
-7
FCR
B
IT
-6
FCR
B
IT
-5
FCR
BIT
-4
T
RANSMIT
INT
T
RIGGER
L
EVEL
R
ECEIVE
INT
T
RIGGER
L
EVEL
A
UTO
RTS
D
E
-
ASSERT
A
UTO
RTS
R
E
-
ASSERT
C
OMPATIBILITY
0
0
1
1
0
1
0
1
0
0
1
1
0
1
0
1
16
8
24
30
8
16
24
28
16
24
28
28
0
8
16
24
16C650A compati-
ble.
BIT-1
BIT-0
W
ORD
LENGTH
0
0
5 (default)
0
1
6
1
0
7
1
1
8
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST16C650A 制造商:EXAR 制造商全稱:EXAR 功能描述:2.90V TO 5.5V UART WITH 32-BYTE FIFO
ST16C650A_0508 制造商:EXAR 制造商全稱:EXAR 功能描述:2.90V TO 5.5V UART WITH 32-BYTE FIFO
ST16C650A_09 制造商:EXAR 制造商全稱:EXAR 功能描述:2.90V TO 5.5V UART WITH 32-BYTE FIFO
ST16C650ACJ44 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述:
ST16C650ACJ44-F 功能描述:UART 接口集成電路 UART W/32BYTE FIFO 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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