W83L951DG Datasheet, PDF (77/112 Pages) Winbond – Mobile Keyboard and Embedded Controller

W83L951DG/W83L951FG
Bit 1: Character length selection bit (CHAS) .
0: 8 bits 1: 7 bits.
Bit 0: User Define Register
6.10.1.2 UART Status Register (UARTSTS) (Default Value: 0000_0000)
Bit 7: Parity Error Status for Packet at Receive Buffer (PE)
Read: 0 - No error, 1 - Parity error
Bit 6: Framing Error Status for Packet at Receive Buffer (FE)
Read: 0 - No error, 1 - Framing error
Bit 5: Overrun Error Interrupt (OE)
For UART Rx Interrupt, users need to write this bit to clear.
Read:
0 - No error
1 - Overrun error
Write:
0 - No Chang
1 - Clear
Bit 4~2: No use (return ‘L’ when read)
Bit 1: Receive Buffer Full Status Flag (RBF)
Receive Buffer Full generates the interrupt. Read buffer can clear the flag.
0: Buffer empty
1: Buffer full
Bit 0: Transmit Buffer Full Status Flag (TBF)
Transmit Buffer Empty generates the interrupt. Write buffer can clear the flag. And next byte is allowed
to write into the buffer.
0: Buffer empty
1: Buffer full
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Publication Release Date: August 2006
Revision 1.0