TMPR3916 datasheet(198/225 Pages) TOSHIBA

tên linh kiện	TMPR3916

Giải thích chi tiết về linh kiện	32-Bit TX System RISC TX39 Family TMPR3916

PDF	225 Pages

Scroll/Zoom	100%

nhà sản xuất	TOSHIBA [Toshiba Semiconductor]

Trang chủ	http://www.semicon.toshiba.co.jp/eng

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198 / 225 page

Chapter 10 Asynchronous Serial Interface (UART)

Preliminary

10-23

START

TMPR3916 CCR REGISTER &

MUX CONFIGURATION

Reset UART: (SIFCR)

SWRST = 1

RFRST = 1

FRSTEW = 1

Line Control Register:

LSBF = 0

UEPS = 1

UPEN = 1

(Sets MSB first, 8 bit tx, etc)

Stop UART Reset (SIFCR)

RFRST = 0

FRSTEW = 0

Flow Control Register

RCS = 1

RSDR = 0

RTSTL = 0001

enables RTS hardware, storing of

received data, sets RTS trigger

level to 1

RECEPTION ENDS

Check RFDN (number of

entries in RX FIFO) in

Interrupt Status Register

Check Interrupt Register

for Frame, Parity, Overrun

or Time Out errors

Retrieve one entry from RX FIFO

ERROR

Check RFDN (number of

entries in RX FIFO) in the

Interrupt Status Register

errors

BLOCK LENGTH = BLOCK

LENGTH - 1

BLOCK LENGTH >

0 ?

yes

Retrieve the first entry from the

RX FIFO

STORE THE FIFO ENTRY AS

BLOCK LENGTH IN A

Figure 10.4.2 Example flow for a receive operation. The operations written with the courier font are not to

be performed on the UART, but may involve TMPR3916 programming or only software

operations.

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