xr68c681 Exar Corporation, xr68c681 Datasheet - Page 15

• Manufacturer Part Number: xr68c681
• Description: Cmos Dual Channel Uart Duart
• Manufacturer: Exar Corporation

XR68C681
Bit 7
Bit 6
Bit 5
Bit 4
Description
Null Command:
Reset MRn Pointer:
Reset Receiver:
Reset Transmitte
Reset Error Status:
Reset Break Change Interrupt:
Start Break:
Stop Break:
Set Rx BRG Select Extend Bit:
Clear Rx BRG Select Extend Bit:
Set Tx BRG Select Extend Bit:
Clear Tx BRG Select Extend Bit:
Set Standby Mode (Channel A):
Set Active Mode (Channel A):
Reserved
Reserved
Table 3. Miscellaneous Commands, Upper Nibble of all Command Registers, Unless Otherwise Specified.