xr68c681 Exar Corporation, xr68c681 Datasheet - Page 63

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

Received
BRG Set
Delta IP3
Select
Break
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
OP7
Miscellaneous Commands
Framing
Delta IP2
Counter/Timer #1 Mode and Source
Error
Bit 6
Bit 6
Bit 6
Bit 6
Bit 6
OP6
Section B.2
Table 25. Output Port Configuration Register: OPCR
Parity Error
Table 27. Input Port Configuration Register , IPCR
Delta IP1
Bit 5
Bit 5
Bit 5
Bit 5
Bit 5
OP5
Table 4
Table 23. Command Registers: CRA, CRB
Table 26. Auxilliary Control Register: ACR
Table 24. Status Registers: SRA, SRB
Delta IP0
Overrun
Error
Bit 4
Bit 4
Bit 4
Bit 4
Bit 4
OP4
Delta IP3
Interrupt
TXEMT
Bit 3
Bit 3
Bit 3
Bit 3
Bit 3
IP3
Enable / Disable
Transmitter
OP3
Delta IP2
Interrupt
TXRDY
Bit 2
Bit 2
Bit 2
Bit 2
Bit 2
IP2
XR68C681
Delta IP1
Interrupt
FFULL
Bit 1
Bit 1
Bit 1
Bit 1
Bit 1
IP1
Enable / Disable
Receiver
OP2
Delta IP0
Interrupt
RXRDY
Bit 0
Bit 0
Bit 0
Bit 0
Bit 0
IP0