APPOTECH CW6632B - Page 80

74 8.2 UART1
CW6632B Bluetooth 3.0 Audio Player SOC Version 1.0.0
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Access
R/W
R/W
R/W
R/W
R/W
R/W
-
R/W
UTSBS: Stop Bit Select
0 = 1 bit as Stop Bit
1 = 2 bits as Stop Bit
UTTXNB: The ninth bit data of transmitter buffer. Write the ninth bit into this location that you want to transmit
NBITEN: Nine-BIT mode Enable Bit
0 = Eight-bit mode
1 = Nine-bit mode
UTEN: UART Enable Bit
0 = Disable UART module
1 = Enable UART module
TXIE: Transmit Interrupt Enable
0 = Transmit interrupt disable
1 = Transmit interrupt enable
RXIE: Receive Interrupt Enable
0 = Normal Receive interrupt disable or AUTO DMA mode Receive one word Interrupt disable
1 = Normal Receive interrupt enable or AUTO DMA mode Receive one word Interrupt enable
OVERFLOWIE: Receive DMA overflow interrupt enable
0 = overflow Interrupt disable
1 = overflow Interrupt enable
DMASEL:AUTO DMA choose
0 = AUTO DMA mode off
1= AUTO DMA mode on
Register 8-8 UART1STA – UART1 status
Position
7
6
5
4
3
2
1
0
Name
UART_GIIE
-
UTRXNB
RX_BYTE_HIGH
RXIF
TXIF
OVERFLOWIF
RXKICK
Default
0
-
x
0
0
1
0
0
Access
R/W
-
R/W
RO
R/W
R/W
R/W
WO
UART_GIE:UART Global Interrupt 15 Enable
0 = UART Global I Interrupt disable
1 = UART Global I Interrupt enable
UTRXNB: The ninth bit data of receiver buffer
RX_BYTE_HIGH : receive data high byte(only for DMA)
0 = waiting receive data low byte
1 = waiting receive data high byte
RXIF: UART RX Interrupt Flag
0 = Normal Receive or AUTO DMA mode Receive one word not done
1 = Normal Receive or AUTO DMA mode Receive one word done