Datasheet

UART
Intel
®
Quark™ microcontroller D2000
January 2016 Datasheet
Document Number: 333577-002EN 225
Bits Access
Type
Default Description PowerWell ResetSignal
Send address control bit. This
bit is used as a control knob
for the user to determine
when to send the address
during transmit mode.
1 = 9-bit character will be
transmitted with 9-th bit set to
1 and the remaining 8-bits will
match to what is being
programmed in Transmit
Address Register.
0 = 9-bit character will be
transmitted with 9-th bit set to
0 and the remaining 8-bits will
be taken from the TXFIFO
which is programmed through
8-bit wide THR/STHR register.
NOTE:
1. This bit is auto-cleared by
the hardware, after sending
out the address character.
User is not expected to
program this bit to 0.
2. This field is applicable only
when DLS_E bit is set to 1 and
TRANSMIT_MODE is set to 0.
1 RW 1'h0 Address Match Mode
(ADDR_MATCH)
Address Match Mode.This bit is
used to enable the address
match feature during receive.
1 = Address match mode;
UART Controller will wait until
the incoming character with 9-
th bit set to 1. And further
checks to see if the address
matches with what is
programmed in Receive
Address Match Register. If
match is found, then sub-
sequent characters will be
treated as valid data and
UART Controller starts
receiving data.
0 = Normal mode; UART
Controller will start to receive
the data and 9-bit character
will be formed and written into
the receive RXFIFO. User is
responsible to read the data
and differentiate b/n address
and data.