Datasheet

UART
Intel
®
Quark™ microcontroller D2000
January 2016 Datasheet
Document Number: 333577-002EN 215
14.3.1.9 UART Status (USR)
Provides internal status information.
MEM Offset (B0002000) 0B000207Ch
Security_PolicyGroup
IntelRsvd False
Size 32 bits
Default 0000_0000h
Bits Access
Type
Default Description PowerWell ResetSignal
31:5 RO 27'h0 Reserved (RSV1)
4 RO 1'h0 Receive FIFO Full (RFF)
Used to indicate that the
receive FIFO is completely full.
That is:
0 = Receive FIFO not full
1 = Receive FIFO Full
This bit is cleared when the RX
FIFO is no longer full.
3 RO 1'h0 Receive FIFO Not Empty
(RFNE)
Used to indicate that the
receive FIFO contains one or
more entries.
0 = Receive FIFO is empty
1 = Receive FIFO is not empty
This bit is cleared when the RX
FIFO is empty.
2 RO 1'h0 Transmit FIFO Empty (TFE)
Used to indicate that the
transmit FIFO is completely
empty.
0 = Transmit FIFO is not
empty
1 = Transmit FIFO is empty
This bit is cleared when the TX
FIFO is no longer empty.
1 RO 1'h0 Transmit FIFO Not Full
(TFNF)
Used to indicate that the
transmit FIFO in not full.
0 = Transmit FIFO is full
1 = Transmit FIFO is not full
This bit is cleared when the TX
FIFO is full.