C8051F700-GQR Silicon Laboratories Inc, C8051F700-GQR Datasheet - Page 260

• Manufacturer Part Number: C8051F700-GQR
• Description: MCU 8-Bit C8051F70x 8051 CISC 15KB Flash 1.8V/3V 64-Pin TQFP T/R
• Manufacturer: Silicon Laboratories Inc

Specifications of C8051F700-GQR

• Package: 64TQFP
• Device Core: 8051
• Family Name: C8051F70x
• Maximum Speed: 25 MHz
• Ram Size: 512 Byte
• Program Memory Size: 15 KB
• Operating Supply Voltage: 1.8|3 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 54
• Interface Type: I2C/SMBus/SPI/UART
• On-chip Adc: 16-chx10-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 4

C8051F70x/71x
SFR Definition 32.2. SBUF0: Serial (UART0) Port Data Buffer
SFR Address = 0x99; SFR Page = All Pages
260
Name
Reset
7:0 SBUF0[7:0] Serial Data Buffer Bits 7–0 (MSB–LSB).
Bit
Type
Bit
Name
7
0
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 transmission. Writing a byte to SBUF0 initiates the transmission. A read of
SBUF0 returns the contents of the receive latch.
6
0
5
0
Rev. 1.0
4
0
SBUF0[7:0]
R/W
Function
3
0
2
0
1
0
0
0