C8051F902-GM Silicon Laboratories Inc, C8051F902-GM Datasheet - Page 70

• Manufacturer Part Number: C8051F902-GM
• Description: IC MCU 8BIT 8KB FLASH 24QFN
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F9xxr

Specifications of C8051F902-GM

• Program Memory Type: FLASH
• Program Memory Size: 8KB (8K x 8)
• Package / Case: 24-QFN
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 16
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 0.9 V ~ 3.6 V
• Data Converters: A/D 15x10/12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: C8051F9x
• Core: 8051
• Data Ram Size: 768 B
• Interface Type: UART
• Maximum Clock Frequency: 25 MHz
• Number Of Timers: 4
• Operating Supply Voltage: 0.9 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: C8051F912DK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit
• Package: 24QFN EP
• Device Core: 8051
• Family Name: C8051F90x
• Maximum Speed: 25 MHz
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1848-5

C8051F91x-C8051F90x
SFR Definition 5.2. ADC0CF: ADC0 Configuration
SFR Page = 0x0; SFR Address = 0xBC
70
Name
Reset
Bit
Type
7:3
2
1
0
Bit
AD0SC[4:0] ADC0 SAR Conversion Clock Divider.
AMP0GN
AD08BE
AD0TM
Name
7
1
SAR Conversion clock is derived from FCLK by the following equation, where
AD0SC refers to the 5-bit value held in bits AD0SC[4:0]. SAR Conversion clock
requirements are given in Table 4.10.
BURSTEN = 0: FCLK is the current system clock.
BURSTEN = 1: FCLK is the 20 MHz low power oscillator, independent of the system
clock.
ADC0 8-Bit Mode Enable.
0: ADC0 operates in 10-bit mode (normal operation).
1: ADC0 operates in 8-bit mode.
ADC0 Track Mode.
Selects between Normal or Delayed Tracking Modes.
0: Normal Track Mode: When ADC0 is enabled, conversion begins immediately fol-
lowing the start-of-conversion signal.
1: Delayed Track Mode: When ADC0 is enabled, conversion begins 3 SAR clock
cycles following the start-of-conversion signal. The ADC is allowed to track during
this time.
ADC0 Gain Control.
0: The on-chip PGA gain is 0.5.
1: The on-chip PGA gain is 1.
*Round the result up.
AD0SC
CLK
6
1
SAR
=
=
AD0SC[4:0]
------------------- - 1
CLK
or
FCLK
----------------------------
AD0SC
R/W
5
1
FCLK
SAR
–
+
1
*
Rev. 1.0
4
1
Function
3
1
AD08BE
R/W
2
0
AD0TM
R/W
1
0
AMP0GN
R/W
0
0