C8051F541-IM Silicon Laboratories Inc, C8051F541-IM Datasheet - Page 43

• Manufacturer Part Number: C8051F541-IM
• Description: IC 8051 MCU 16K FLASH 32-QFN
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F54xr

Specifications of C8051F541-IM

• Program Memory Type: FLASH
• Program Memory Size: 16KB (16K x 8)
• Package / Case: 32-QFN
• Mfg Application Notes: LIN Bootloader AppNote
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 50MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: POR, PWM, Temp Sensor, WDT
• Number Of I /o: 25
• Ram Size: 1.25K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.25 V
• Data Converters: A/D 25x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Processor Series: C8051F5x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Maximum Clock Frequency: 50 MHz
• Number Of Programmable I/os: 25
• Operating Supply Voltage: 1.8 V to 5.25 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: C8051F540DK
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 336-1672 - BOARD PROTOTYPE W/C8051F540336-1669 - KIT DEVELOPMENT FOR C8051F540
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1673-5

SFR Definition 5.8. ADC0TK: ADC0 Tracking Mode Select
SFR Address = 0xBA; SFR Page = 0x00;
5.4. Programmable Window Detector
The ADC Programmable Window Detector continuously compares the ADC0 output registers to user-pro-
grammed limits, and notifies the system when a desired condition is detected. This is especially effective in
an interrupt-driven system, saving code space and CPU bandwidth while delivering faster system
response times. The window detector interrupt flag (AD0WINT in register ADC0CN) can also be used in
polled mode. The ADC0 Greater-Than (ADC0GTH, ADC0GTL) and Less-Than (ADC0LTH, ADC0LTL)
registers hold the comparison values. The window detector flag can be programmed to indicate when mea-
sured data is inside or outside of the user-programmed limits, depending on the contents of the ADC0
Less-Than and ADC0 Greater-Than registers.
Name
Reset
Bit
7:4
3:2
1:0
Type
Bit
AD0PWR[3:0] ADC0 Burst Power-Up Time.
AD0TM[1:0]
AD0TK[1:0]
Name
7
1
AD0PWR
For BURSTEN = 0: ADC0 Power state controlled by AD0EN
For BURSTEN = 1, AD0EN = 1: ADC0 remains enabled and does not enter the
very low power state
For BURSTEN = 1, AD0EN = 0: ADC0 enters the very low power state and is
enabled after each convert start signal. The Power-Up time is programmed accord-
ing the following equation:
ADC0 Tracking Mode Enable Select Bits.
00: Reserved.
01: ADC0 is configured to Post-Tracking Mode.
10: ADC0 is configured to Pre-Tracking Mode.
11: ADC0 is configured to Dual Tracking Mode.
ADC0 Post-Track Time.
00: Post-Tracking time is equal to 2 SAR clock cycles + 2 FCLK cycles.
01: Post-Tracking time is equal to 4 SAR clock cycles + 2 FCLK cycles.
10: Post-Tracking time is equal to 8 SAR clock cycles + 2 FCLK cycles.
11: Post-Tracking time is equal to 16 SAR clock cycles + 2 FCLK cycles.
AD0PWR[3:0]
6
1
R/W
=
5
1
Tstartup
----------------------- - 1
200ns
Rev. 1.1
4
1
–
or
Tstartup
Function
3
1
AD0TM[1:0]
R/W
=

AD0PWR
2
1
C8051F54x
1
1
+
AD0TK[1:0]
1
200ns
R/W
0
1
43