XR21V1412IL-0B-EB Exar Corporation, XR21V1412IL-0B-EB Datasheet - Page 14

• Manufacturer Part Number: XR21V1412IL-0B-EB
• Description: Interface Modules & Development Tools For XR21V1412 QFN32 USB, RS232;No Cables
• Manufacturer: Exar Corporation
• Series: -r

Specifications of XR21V1412IL-0B-EB

• Interface Type: RS-232, USB
• Operating Supply Voltage: 3.3 V
• Product: Interface Modules
• Silicon Core Number: XR21V1412
• Application Sub Type: UART
• Kit Contents: Board
• Main Purpose: Interface, USB 2.0 to UART
• Embedded: No
• Utilized Ic / Part: XR21V1412IL
• Primary Attributes: -
• Secondary Attributes: -
• Silicon Manufacturer: Exar
• Kit Application Type: Communication & Networking
• For Use With/related Products: XR21V1412
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

XR21V1412
2-CH FULL-SPEED USB UART
The table below lists the block numbers for accessing each of the UART channels and the UART Manager..
2.1
UART Channel A
UART Channel B
UART Manager
UART Custom
B
XR_GETN_REG
SEND_BREAK
XR_SET_REG
CDC_ACM_IF
LOCK
UART Block Numbers
N
AME
N
AME
B
LOCK
R
0x66
EQUEST
0xC0
T
0x21
0x40
T
0
1
4
N
YPE
ABLE
UMBER
4: S
R
EQUEST
T
UPPORTED
35
0
1
ABLE
The configuration and control registers for UART channel A.
The configuration and control registers for UART channel B.
The control registers for the UART Manager. The UART Manager
enables/disables the TX and RX FIFOs for each UART.
Custom UART control registers. Enables / disables for wide mode, low
latency mode and custom interrupt packet.
5: C
LSB
val
val
0
V
ONTROL
USB C
ALUE
14
MSB
val
0
0
ONTROL
B
regis-
regis-
0, 2,
LOCKS
4, 6
ter
ter
I
NDEX
C
block
block count
OMMANDS
0
D
ESCRIPTION
LSB
0
0
L
ENGTH
count
MSB
0
0
block number: see
block number: see
Send a break for the speci-
Exar custom command: set
Exar custom register: get
val: 8-bit register value
register address: see
register address: see
count 8-bit registers
one 8-bit register
D
fied duration
ESCRIPTION
Table 7
Table 7
REV. 1.1.0
Table 5
Table 5