- 您現(xiàn)在的位置：買賣IC網 > PDF目錄384931 > ST16C650A (Exar Corporation) 2.90V TO 5.5V UART WITH 32-BYTE FIFO PDF資料下載
參數(shù)資料
| 型號： | ST16C650A |
| 廠商： | Exar Corporation |
| 英文描述： | 2.90V TO 5.5V UART WITH 32-BYTE FIFO |
| 中文描述： | 2.90V至5.5V UART的32字節(jié)FIFO |
| 文件頁數(shù)： | 17/53頁 |
| 文件大?。?/td> | 666K |
| 代理商： | ST16C650A |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁當前第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁
á
REV. 5.0.0
ST16C650A
2.90V TO 5.5V UART WITH 32-BYTE FIFO
17
2.11
Automatic RTS hardware flow control is used to prevent data overrun to the local receiver FIFO. The RTS#
output is used to request remote unit to suspend/resume data transmission. The auto RTS flow control
features is enabled to fit specific application requirement (see
Figure 13
):
Enable auto RTS flow control using EFR bit-6.
The auto RTS function must be started by asserting RTS output pin (MCR bit-1 to logic 1 after it is enabled).
With the Auto RTS function enabled, the RTS# output pin will not be de-asserted (logic 1) when the receive
FIFO reaches the programmed trigger level, but will be de-asserted when the FIFO reaches the next trigger
level (
See Table 10
). The RTS# output pin will be asserted again after the FIFO is unloaded to the next trigger
level below the programmed trigger level. However, even under these conditions, the 650A will continue to
accept data until the receive FIFO is full if the remote UART transmitter continues to send data.
Enable RTS interrupt through IER bit-6 (after setting EFR bit-4). The UART issues an interrupt when the
RTS# pin is de-asserted (logic 1) during Auto RTS flow control mode: ISR bit-5 will be set to logic 1.
2.12
Auto CTS Flow Control
Automatic CTS flow control is used to prevent data overrun to the remote receiver FIFO. The CTS# input is
monitored to suspend/restart the local transmitter. The auto CTS flow control feature is selected to fit specific
application requirement (see
Figure 13
):
Enable auto CTS flow control using EFR bit-7.
With the Auto CTS function enabled, the UART will suspend transmission as soon as the stop bit of the
character in the Transmit Shift Register has been shifted out. Transmission is resumed after the CTS# input is
re-asserted (logic 0), indicating more data may be sent.
Enable CTS interrupt through IER bit-7 (after setting EFR bit-4). The UART issues an interrupt when the
CTS# pin is de-asserted (logic 1) during Auto CTS flow control mode: ISR bit-5 will be set to 1.
Automatic RTS (Hardware) Flow Control
F
IGURE
12. R
ECEIVER
O
PERATION
IN
FIFO
AND
A
UTO
RTS F
LOW
C
ONTROL
M
ODE
Receive Data Shift
Register (RSR)
RXFIFO1
16X Clock
E
(
E
L
32 bytes by 11-bit
wide FIFO
Receive Data Characters
FIFO
Trigger=16
Example
:
- RX FIFO trigger level selected at 16 bytes
Data fills to
24
Data falls to
8
Data Bit
Validation
Receive
Data FIFO
Receive
Data
Receive Data
Byte and Errors
RHR Interrupt (ISR bit-2) programmed for
desired FIFO trigger level.
FIFO is Enabled by FCR bit-0=1
RTS# de-asserts when data fills above the flow
control trigger level to suspend remote transmitter.
Enable by EFR bit-6=1, MCR bit-1.
RTS# re-asserts when data falls below the flow
control trigger level to restart remote transmitter.
Enable by EFR bit-6=1, MCR bit-1.
相關PDF資料 |
PDF描述 |
|---|---|
| ST16C650ACJ44 | 2.90V TO 5.5V UART WITH 32-BYTE FIFO |
| ST16C650ACP40 | 2.90V TO 5.5V UART WITH 32-BYTE FIFO |
| ST16C650ACQ48 | 2.90V TO 5.5V UART WITH 32-BYTE FIFO |
| ST16C650AIJ44 | 2.90V TO 5.5V UART WITH 32-BYTE FIFO |
| ST16C650AIP40 | 2.90V TO 5.5V UART WITH 32-BYTE FIFO |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| ST16C650ACJ44TR-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 |
發(fā)布緊急采購，3分鐘左右您將得到回復。