xr16v794iv Exar Corporation, xr16v794iv Datasheet - Page 25

• Manufacturer Part Number: xr16v794iv
• Description: High Performance 2.25v To 3.6v Quad Uart With Fractional
• Manufacturer: Exar Corporation

REV. 1.0.0
Device identification for the type of UART. The Device ID for the V794 is 0x44.
Examples:
XR16V794 = 0x44
XR16L784 = 0x24
Revision number of the XR16V794. A 0x01 represents "revision-A" with 0x02 for rev-B and so forth.
REGB[0]: Simultaneous write to all 4 UARTs
•
•
REGB[7:1]
Reserved.
3.1.7.1
3.1.7.2
3.1.8
Logic 0 = Write to each UART configuration register individually (default).
Logic 1 = Enable simultaneous write to all 4 UART configuration registers. This can be very useful during
device initialization in the power-up and reset routines.
REGB [7:0] (default 0x00)
DVID [7:0] (default 0x48)
DREV [7:0] (default (0x01)
HIGH PERFORMANCE 2.25V TO 3.6V QUAD UART WITH FRACTIONAL BAUD RATE
25
XR16V794