XR21V1412IL32-F Exar Corporation, XR21V1412IL32-F Datasheet - Page 26

• Manufacturer Part Number: XR21V1412IL32-F
• Description: IC UART FIFO USB DUAL 32QFN
• Manufacturer: Exar Corporation
• Type: USB UARTsr

Specifications of XR21V1412IL32-F

• Package / Case: 32-VFQFN Exposed Pad
• Features: *
• Number Of Channels: 2, DUART
• Fifo's: 128 Byte, 384 Byte
• Protocol: USB 2.0
• Voltage - Supply: 2.97 V ~ 3.63 V
• With Auto Flow Control: Yes
• Mounting Type: Surface Mount
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Supply Current: 16 mA
• Operating Supply Voltage: 2.97 V to 3.63 V
• No. Of Channels: 2
• Data Rate: 12Mbps
• Uart Features: Automatic Hardware And Software Flow Control, Half-Duplex Mode, Fractional Baud Rate Generator
• Supply Voltage Range: 2.97V To 3.63V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 1016-1301 - EVAL BOARD FOR XR21V1412IL
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 1016-1302

XR21V1412
2-CH FULL-SPEED USB UART
If the Exar vendor specific packet mapping is enabled then the data field also includes status for all of the
UART / GPIO pins as follows:
O
D15..D7
B
FFSET
D6
D5
D4
D3
D2
D1
D0
IT
0
1
2
4
6
8
(
S
)
bmRequestType
bNotification
wLength
wValue
wIndex
bRingSignal
F
bRxCarrier
bTxCarrier
Data
bOverRun
bFraming
IELD
bParity
bBreak
F
IELD
T
ABLE
(B
S
YTES
Reserved (0)
Received data has been discarded due to overrun in the device.
A parity error has occured.
A framing error has occured.
State of ring signal detection of the device.
State of break detection mechanism of the device.
State of transmission carrier. This signal corresponds to V.24 signal 106 and
RS-232 signal DSR.
State of receiver carrier detection mechanism of device. This signal corre-
sponds to V.24 signal 109 and RS-232 signal DCD.
17: D
IZE
1
1
2
2
2
2
T
ABLE
)
ATA
(See
8’b10100001
or
16: I
int_status
16’h0000
16’h0000
16’h0002
Standard
Table 18
F
V
8’h20
IELD OF
Table 17
ALUE
NTERRUPT
)
S
26
TANDARD
D6:5 = Class Type
D4-0: = Interface Recipient
D7-0 = Interface number, 8’h00 for the CDC Com-
mand Interface
D7 = Device-to-host direction
Defined encoding for SERIAL_STATE
D15-8 = Reserved (0)
2 bytes of transferred data
D15-7 = Reserved (0)
D6 = bOverRun
D5 = bParity
D4 = bFraming
D3 = bRingSignal (RI)
D2 = bBreak
D1 = bTxCarrier (DSR)
D0 = bRxCarrier (CD)
P
ACKET
D
I
NTERRUPT
ESCRIPTION
F
ORMAT
D
P
ESCRIPTION
ACKET
REV. 1.1.0