XR21V1414IM48 EXAR [Exar Corporation], XR21V1414IM48 Datasheet - Page 14

• Manufacturer Part Number: XR21V1414IM48
• Description: 4-CH FULL-SPEED USB UART
• Manufacturer: EXAR [Exar Corporation]

XR21V1414
4-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 Channel C
UART Channel D
UART Manager
B
XR_GETN_REG
SEND_BREAK
XR_SET_REG
CDC_ACM_IF
LOCK
UART Block Numbers
N
AME
N
AME
B
LOCK
R
EQUEST
0xC0
T
0x21
0x40
T
0
1
2
3
4
N
YPE
ABLE
UMBER
3: 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 configuration and control registers for UART channel C.
The configuration and control registers for UART channel D.
The control registers for the UART Manager. The UART Manager
enables/disables the TX and RX FIFOs for each UART.
4: 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
Exar custom command: set
block number: see
block number: see
Send a break for the speci-
Exar custom register: get
val: 8-bit register value
Table 6 on page 16
Table 6 on page 16
register address: see
register address: see
count 8-bit registers
one 8-bit register
on page 14
on page 14
D
fied duration
ESCRIPTION
REV. 1.0.0
Table 4
Table 4