C8051F047R Silicon Labs, C8051F047R Datasheet - Page 164

• Manufacturer Part Number: C8051F047R
• Description: 8-bit Microcontrollers - MCU 25 MIPS 32KB 10ADC
• Manufacturer: Silicon Labs

Specifications of C8051F047R

• Product Category: 8-bit Microcontrollers - MCU
• Core: 8051
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 25 MHz
• Program Memory Size: 32 KB
• Data Ram Size: 4.25 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 2.7 V to 3.6 V
• Package / Case: TQFP-64
• Mounting Style: SMD/SMT
• A/d Bit Size: 10 bit
• A/d Channels Available: 13
• Data Rom Size: 64 KB
• Interface Type: CAN, SMBus, SPI, UART
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 32
• Number Of Timers: 16 bit
• Processor Series: C8051
• Program Memory Type: Flash
• Factory Pack Quantity: 500
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 2.7 V

C8051F040/1/2/3/4/5/6/7
12.17.2.Stop Mode
Setting the Stop Mode Select bit (PCON.1) causes the CIP-51 to enter Stop mode as soon as the instruc-
tion that sets the bit completes. In Stop mode, the CPU and internal oscillators are stopped, effectively
shutting down all digital peripherals. Each analog peripheral must be shut down individually prior to enter-
ing Stop Mode. Stop mode can only be terminated by an internal or external reset. On reset, the CIP-51
performs the normal reset sequence and begins program execution at address 0x0000.
If enabled, the Missing Clock Detector will cause an internal reset and thereby terminate the Stop mode.
The Missing Clock Detector should be disabled if the CPU is to be put to sleep for longer than the MCD
timeout of 100 µs.
164
Bits7-3:
Bit1:
Bit0:
R/W
Bit7
—
Reserved.
STOP: STOP Mode Select.
Writing a ‘1’ to this bit will place the CIP-51 into STOP mode. This bit will always read ‘0’.
0: No effect.
1: CIP-51 forced into power-down mode. (Turns off internal oscillator).
IDLE: IDLE Mode Select.
Writing a ‘1’ to this bit will place the CIP-51 into IDLE mode. This bit will always read ‘0’.
0: No effect.
1: CIP-51 forced into idle mode. (Shuts off clock to CPU, but clock to Timers, Interrupts, and
all peripherals remain active.)
R/W
Bit6
—
SFR Definition 12.18. PCON: Power Control
R/W
Bit5
—
R/W
Bit4
—
Rev. 1.5
R/W
Bit3
—
R/W
Bit2
—
STOP
R/W
Bit1
SFR Address:
SFR Page:
IDLE
R/W
Bit0
0x87
All Pages
00000000
Reset Value