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XR16M781IL24 Datasheet(PDF) 6 Page - Exar Corporation

Part # XR16M781IL24
Description  1.62V TO 3.63V UART WITH 64-BYTE FIFO AND VLIO INTERFACE
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XR16M781IL24 Datasheet(HTML) 6 Page - Exar Corporation

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XR16M781
6
1.62V TO 3.63V UART WITH 64-BYTE FIFO AND VLIO INTERFACE
REV. 1.0.1
2.0 FUNCTIONAL DESCRIPTIONS
2.1
CPU Interface
The CPU interface is a VLIO bus interface. The VLIO bus interface is an 8-bit multiplexed address/data bus
interface. Each bus cycle is asynchronous using CS#, LLA# and IOR# or IOW# inputs. A typical data bus
interconnection for the VLIO bus interface is shown in Figure 3.
FIGURE 3. XR16M781 TYPICAL VLIO DATA BUS INTERCONNECTIONS
VCC
VCC
UART_CS#
UART_IOR#
UART_IOW#
CS#
IOR#
IOW#
UART_INT
INT
GND
UART_RESET#
RESET#
RI#
CD#
DSR#
CTS#
RTS#
DTR#
RX
TX
PWRSAVE
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
Serial Transceivers of
RS-232
RS-485
RS-422
Or Infrared
POWERSAVE
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7


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