TMP320C2811PBKA datasheet(72/147 Pages) TI

72 / 147 page

Peripherals

June 2004

SPRS257

Figure 4−10 shows the SCI module block diagram.

TX FIFO _0

LSPCLK

WUT

Frame Format and Mode

Even/Odd Enable

Parity

SCI RX Interrupt select logic

BRKDT

RXRDY

SCIRXST.6

SCICTL1.3

SCICTL2.1

RX/BK INT ENA

SCIRXD

SCIRXST.1

TXENA

SCI TX Interrupt select logic

TX EMPTY

TXRDY

SCICTL2.0

TX INT ENA

SCITXD

RXENA

SCIRXD

RXWAKE

SCICTL1.6

RX ERR INT ENA

TXWAKE

SCITXD

SCICCR.6 SCICCR.5

SCITXBUF.7−0

SCIHBAUD. 15 − 8

Baud Rate

MSbyte

SCILBAUD. 7 − 0

Transmitter−Data

Buffer Register

SCICTL2.6

SCICTL2.7

Baud Rate

LSbyte

RXSHF

TXSHF

SCIRXST.5

TX FIFO _1

−−−−−

TX FIFO _15

TX FIFO registers

TX FIFO

TX Interrupt

Logic

TXINT

SCIFFTX.14

RX FIFO _15

SCIRXBUF.7−0

Receive Data

Buffer register

SCIRXBUF.7−0

−−−−−

RX FIFO_1

RX FIFO _0

RX FIFO registers

SCICTL1.0

RX Interrupt

Logic

RXINT

RX FIFO

SCIFFRX.15

RXFFOVF

RX Error

SCIRXST.7

FE OE

RX Error

SCIRXST.4 − 2

To CPU

AutoBaud Detect logic

SCICTL1.1

SCIFFENA

Interrupts

Figure 4−10. Serial Communications Interface (SCI) Module Block Diagram

TMP320C2811PBKA Datasheet(PDF) 72 Page - Texas Instruments

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