C8051F062-GQR Silicon Laboratories Inc, C8051F062-GQR Datasheet - Page 90

• Manufacturer Part Number: C8051F062-GQR
• Description: IC 8051 MCU 64K FLASH 100TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F06xr

Specifications of C8051F062-GQR

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: CAN, EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 59
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 4.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 2x16b, 8x10b; D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• For Use With: 336-1214 - DEV KIT FOR F060/F062/F063
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

C8051F060/1/2/3/4/5/6/7
7.2.2. Tracking Modes
The AD2TM bit in register ADC2CN controls the ADC2 track-and-hold mode. In its default state, the ADC2
input is continuously tracked, except when a conversion is in progress. When the AD2TM bit is logic 1,
ADC2 operates in low-power track-and-hold mode. In this mode, each conversion is preceded by a track-
ing period of 3 SAR clocks (after the start-of-conversion signal). When the CNVSTR2 signal is used to ini-
tiate conversions in low-power tracking mode, ADC2 tracks only when CNVSTR2 is low; conversion
begins on the rising edge of CNVSTR2 (see Figure 7.3). Tracking can also be disabled (shutdown) when
the device is in low power standby or sleep modes. Low-power track-and-hold mode is also useful when
AMUX settings are frequently changed, due to the settling time requirements described in
“7.2.3. Settling Time Requirements” on page
90
Timer 3, Timer 2 Overflow
(AD2CM[1:0]=00, 01, 11)
Write '1' to AD2BUSY,
(AD2CM[1:0]=10)
Figure 7.3. 10-Bit ADC Track and Conversion Example Timing
SAR Clocks
SAR Clocks
SAR Clocks
AD2TM=1
AD2TM=0
CNVSTR2
AD2TM=1
AD2TM=0
Low Power
or Convert
Low Power
or Convert
Track or
Convert
A. ADC2 Timing for External Trigger Source
Track or Convert
B. ADC2 Timing for Internal Trigger Source
91.
1
1
Rev. 1.2
Track
2
2
Track
3
3
4
4
1
Convert
5
5
2
6
6
3
7
7
4
Convert
8
8
5
Convert
Convert
9
9
6
10 11 12
10 11
7
8
9
13 14
10 11
Low Power Mode
Track
Low Power
Mode
Track
Section