C8051F530-IMR Silicon Labs, C8051F530-IMR Datasheet - Page 150

• Manufacturer Part Number: C8051F530-IMR
• Description: 8-bit Microcontrollers - MCU 8KB 12ADC 125C
• Manufacturer: Silicon Labs

Specifications of C8051F530-IMR

• Product Category: 8-bit Microcontrollers - MCU
• Rohs: yes
• Core: 8051
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 25 MHz
• Program Memory Size: 8 KB
• Data Ram Size: 256 B
• On-chip Adc: Yes
• Package / Case: QFN EP
• Mounting Style: SMD/SMT
• A/d Bit Size: 12 bit
• A/d Channels Available: 16
• Interface Type: SPI, UART
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 16
• Number Of Timers: 3
• On-chip Dac: No
• Processor Series: C8051
• Program Memory Type: Flash
• Factory Pack Quantity: 1500
• Supply Voltage - Max: 2.7 V, 5.25 V
• Supply Voltage - Min: 2 V, 2.7 V

C8051F52x/F53x
SFR Definition 15.2. SBUF0: Serial (UART0) Port Data Buffer
150
Table 15.1. Timer Settings for Standard Baud Rates 
Using the Internal Oscillator
Bits7–0: SBUF0[7:0]: Serial Data Buffer Bits 7–0 (MSB–LSB)
R/W
Bit7
Frequency: 24.5 MHz
Target
Baud Rate
(bps)
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.
230400
115200
57600
28800
14400
9600
2400
1200
R/W
Bit6
Baud Rate
% Error
X = Don’t care
Note: SCA1
–0.32%
–0.32%
–0.32%
–0.32%
–0.32%
0.15%
0.15%
0.15%
R/W
Bit5
–
SCA0 and T1M bit definitions can be found in Section 18.1.
Oscillator
Divide
Factor
R/W
Bit4
10176
20448
1704
2544
106
212
426
848
Rev. 1.4
Timer Clock
Source
SYSCLK / 12
SYSCLK / 12
SYSCLK / 48
SYSCLK / 48
R/W
SYSCLK / 4
Bit3
SYSCLK
SYSCLK
SYSCLK
R/W
Bit2
SCA1–SCA0
(pre-scale
select)*
XX
XX
XX
01
00
00
10
10
R/W
Bit1
SFR Address:
T1M* Timer 1
R/W
Bit0
1
1
1
0
0
0
0
0
Reload
Value (hex)
00000000
Reset Value
0xCB
0x96
0x2B
0x96
0xB9
0x96
0x2B
0x96
0x99