XR21V1410IL-0C-EB Exar Corporation, XR21V1410IL-0C-EB Datasheet - Page 19

• Manufacturer Part Number: XR21V1410IL-0C-EB
• Description: Interface Modules & Development Tools For XR21V1410 QFN16 USB, RS485;No Cables
• Manufacturer: Exar Corporation
• Series: -r

Specifications of XR21V1410IL-0C-EB

• Interface Type: RS-232, USB
• Operating Supply Voltage: 3.3 V
• Product: Interface Modules
• Silicon Core Number: XR21V1410
• Application Sub Type: UART
• Kit Contents: Board
• Main Purpose: Interface, USB 2.0 to UART
• Embedded: No
• Utilized Ic / Part: XR21V1410IL
• Primary Attributes: -
• Secondary Attributes: -
• Silicon Manufacturer: Exar
• Kit Application Type: Communication & Networking
• For Use With/related Products: XR21V1410
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

REV. 1.2.0
FLOW_CONTROL[2:0]: Flow control mode select
FLOW_CONTROL[3]: Half-Duplex Mode
FLOW_CONTROL[7:4]: Reserved
These bits are reserved and should remain ’0’.
The XON_CHAR and XOFF_CHAR registers store the XON and XOFF characters, respectively, that are used
in the Automatic Software Flow control. If the V1410 is configured in multidrop mode, the XON_CHAR and
XOFF_CHAR registers are instead used for address matching.
XON_CHAR[7:0]: XON Character
In Automatic Software Flow control mode, the UART will resume data transmission when the XON character
has been received.
For behavior in the Address Match mode, see
page
XOFF_CHAR[7:0]: XOFF Character
In Automatic Software Flow control mode, the UART will suspend data transmission when the XOFF character
has been received.
For behavior in the Address Match mode, see
page
LOOPBACK_CTL[1:0]: Reserved
These bits are reserved and should remain ’0’.
LOOPBACK_CTL[2]: Enable
LOOPBACK_CTL[7:3]: Reserved
These bits are reserved and should remain ’0’.
3.3.7
3.3.8
Logic 0 = Normal (full-duplex) mode. The UART can transmit and receive data at the same time.
Logic 1 = Half-duplex Mode. In half-duplex mode, any data on the RX pin is ignored when the UART is
transmitting data.
Logic 0 = Internal UART (TX to RX) loopback is disabled.
Logic 1 = Internal UART (TX to RX) loopback is enabled.
9.
9.
M
ODE
0
1
2
3
4
XON_CHAR, XOFF_CHAR Register Descriptions (Read/Write)
LOOPBACK_CTL Register Descriptions (Read/Write)
B
IT
0
0
0
0
1
-2 B
IT
0
0
1
1
0
-1 B
IT
0
1
0
1
0
T
-0
ABLE
No flow control, no address matching.
HW flow control enabled. Auto RTS/CTS or DTR/DSR must be selected by
GPIO_MODE.
SW flow control enabled
Multidrop mode - RX only after address match, TX independent. (Typically
used with GPIO_MODE 3)
Multidrop mode - RX / TX only after address match. (Typically used with
GPIO_MODE 4)
13: F
LOW
“Section 1.5.7, Multidrop Mode with address matching” on
“Section 1.5.7, Multidrop Mode with address matching” on
C
ONTROL
19
M
ODE
M
ODE
S
ELECTION
D
ESCRIPTION
1-CH FULL-SPEED USB UART
XR21V1410