C8051F501-IQ Silicon Laboratories Inc, C8051F501-IQ Datasheet - Page 250

• Manufacturer Part Number: C8051F501-IQ
• Description: IC 8051 MCU 64K FLASH 48-QFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F50xr

Specifications of C8051F501-IQ

• Program Memory Type: FLASH
• Program Memory Size: 64KB (64K x 8)
• Package / Case: 48-QFP
• Mfg Application Notes: LIN Bootloader AppNote
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 50MHz
• Connectivity: EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: POR, PWM, Temp Sensor, WDT
• Number Of I /o: 40
• Ram Size: 4.25K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.25 V
• Data Converters: A/D 32x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Processor Series: C8051F5x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 4.25 KB
• Interface Type: I2C/SPI/UART
• Maximum Clock Frequency: 50 MHz
• Number Of Programmable I/os: 40
• Number Of Timers: 4
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: C8051F500DK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 32-ch x 12-bit
• Package: 48PQFP
• Device Core: 8051
• Family Name: C8051F50x
• Maximum Speed: 50 MHz
• Operating Supply Voltage: 2.5|3.3|5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 336-1527 - KIT DEV FOR C8051F50X
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1512

C8051F50x/F51x
SFR Definition 24.3. SBUF0: Serial (UART0) Port Data Buffer
SFR Address = 0x99; SFR Page = 0x00
SFR Definition 24.4. SBCON0: UART0 Baud Rate Generator Control
SFR Address = 0xAB; SFR Page = 0x0F
250
Name
Reset
Name Reserved
Reset
7:0 SBUF0[7:0] Serial Data Buffer Bits 7–0 (MSB–LSB).
5:2
1:0 SB0PS[1:0] Baud Rate Prescaler Select.
Bit
Bit
Type
Type
7
6
Bit
Bit
Reserved
Reserved
SB0RUN
Name
Name
R/W
7
0
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.
Baud Rate Generator Enable.
0: Baud Rate Generator disabled. UART0 will not function.
1: Baud Rate Generator enabled.
Read = 0000b; Must Write = 0000b;
00: Prescaler = 12.
01: Prescaler = 4.
10: Prescaler = 48.
11: Prescaler = 1.
Read = 0b; Must Write 0b;
SB0RUN
R/W
6
0
6
0
Reserved
R/W
5
0
5
0
Reserved
R/W
Rev. 1.2
4
0
4
0
SBUF0[7:0]
R/W
Function
Function
Reserved
R/W
3
0
3
0
Reserved
R/W
2
0
2
0
1
0
1
0
SB0PS[1:0]
R/W
0
0
0
0