C8051F342 View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

Manufacturer

C8051F342

Full Speed USB Flash MCU Family

Silicon Laboratories 

C8051F340/1/2/3/4/5/6/7/8/9/A/B/C/D

SFR Definition 18.2. SBUF0: Serial (UART0) Port Data Buffer

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

Reset Value

00000000

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

SFR Address: 0x99

Bits7–0:

SBUF0[7:0]: Serial Data Buffer Bits 7–0 (MSB-LSB)

This SFR accesses two registers; a transmit shift register and a receive latch register. When

data is written to SBUF0, it goes to the transmit shift register and is held for serial transmis-

sion. Writing a byte to SBUF0 initiates the transmission. A read of SBUF0 returns the con-

tents of the receive latch.

Rev. 1.3

211

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