參數(shù)資料
型號(hào)： ST16C580CP40
廠商： EXAR CORP
元件分類(lèi)： 微控制器/微處理器
英文描述： Linear 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:No; Output Voltage Max:3.3V
中文描述： 1 CHANNEL(S), 1.5M bps, SERIAL COMM CONTROLLER, PDIP40
封裝： 0.600 INCH, PLASTIC, DIP-40
文件頁(yè)數(shù)： 19/41頁(yè)
文件大?。?/td> 244K
代理商： ST16C580CP40
ST16C580
19
Rev. 1.20
(normal default condition)
Logic 1 = Enable the receiver line status interrupt.
IER BIT-3:
Logic 0 = Disable the modem status register interrupt.
(normal default condition)
Logic 1 = Enable the modem status register interrupt.
IER BIT -4:
Logic 0 = Disable sleep mode. (normal default condi-
tion)
Logic 1 = Enable sleep mode. See Sleep Mode section
for details
IER BIT-5:
Logic 0 = Disable the software flow control, receive
Xoff interrupt. (normal default condition)
Logic 1 = Enable the software flow control, receive
Xoff interrupt. See Software Flow Control section for
details.
IER BIT-6:
Logic 0 = Disable the RTS interrupt. (normal default
condition)
Logic 1 = Enable the RTS interrupt. The 580 issues an
interrupt when the RTS pin transitions from a logic 0
to a logic 1.
IER BIT-7:
Logic 0 = Disable the CTS interrupt. (normal default
condition)
Logic 1 = Enable the CTS interrupt. The 580 issues an
interrupt when CTS pin transitions from a logic 0 to a
logic 1.
FIFO Control Register (FCR)
This register is used to enable the FIFO’s, clear the
FIFO’s, set the transmit/receive FIFO trigger levels,
and select the DMA mode. The DMA, and FIFO
modes are defined as follows:
DMA MODE
Mode 0
single transmit or receive operation, and is similar to
the ST16C450 mode. Transmit Ready (-TXRDY) will
Set and enable the interrupt for each
go to a logic 0 when ever an empty transmit space is
available in the Transmit Holding Register (THR).
Receive Ready (-RXRDY) will go to a logic 0 when-
ever the Receive Holding Register (RHR) is loaded
with a character.
Mode 1
Set and enable the interrupt in a block
mode operation. The transmit interrupt is set when the
transmit FIFO is below the programmed trigger level.
-TXRDY remains a logic 0 as long as one empty FIFO
location is available. The receive interrupt is set when
the receive FIFO fills to the programmed trigger level.
However the FIFO continues to fill regardless of the
programmed level until the FIFO is full. -RXRDY
remains a logic 0 as long as the FIFO fill level is above
the programmed trigger level.
FCR BIT-0:
Logic 0 = Disable the transmit and receive FIFO.
(normal default condition)
Logic 1 = Enable the transmit and receive FIFO. This
bit must be a “1” when other FCR bits are written to or
they will not be programmed.
FCR BIT-1:
Logic 0 = No FIFO receive reset. (normal default
condition)
Logic 1 = Clears the contents of the receive FIFO and
resets the FIFO counter logic (the receive shift regis-
ter is not cleared or altered). This bit will return to a
logic 0 after clearing the FIFO.
FCR BIT-2:
Logic 0 = No FIFO transmit reset. (normal default
condition)
Logic 1 = Clears the contents of the transmit FIFO and
resets the FIFO counter logic (the transmit shift regis-
ter is not cleared or altered). This bit will return to a
logic 0 after clearing the FIFO.
FCR BIT-3:
Logic 0 = Set DMA mode “0”. (normal default condi-
tion)
Logic 1 = Set DMA mode “1.”
Transmit operation in mode “0”:
When the 580 is in the ST16C450 mode (FIFO’s
disabled, FCR bit-0 = logic 0) or in the FIFO mode
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ST16C654 Linear Voltage Regulator IC; Output Current Max:350mA; Supply Voltage Max:6V; Package/Case:8-TSSOP; Output Current:600mA; Output Voltage:5V; Current Rating:30.05A; Leaded Process Compatible:No; Output Voltage Max:5V
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參數(shù)描述
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