C8051F019 Silicon Laboratories Inc, C8051F019 Datasheet - Page 56

• Manufacturer Part Number: C8051F019
• Description: IC 8051 MCU 16K FLASH 48TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F018r

Specifications of C8051F019

• 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
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.25K x 8
• Voltage - Supply (vcc/vdd): 2.8 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-TQFP, 48-VQFP
• Data Bus Width: 8 bit
• Data Ram Size: 1.25 KB
• Interface Type: I2C, SMBus, SPI, UART
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 16
• Number Of Timers: 16 bit
• Operating Supply Voltage: 2.8 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: No

8.3.1.
Following are descriptions of SFRs related to the operation of the CIP-51 System Controller. Reserved bits should
not be set to logic l. Future product versions may use these bits to implement new features in which case the reset
value of the bit will be logic 0, selecting the feature’s default state. Detailed descriptions of the remaining SFRs are
included in the sections of the datasheet associated with their corresponding system function.
Bits 7-0: SP: Stack Pointer.
Bits 7-0: DPL: Data Pointer Low.
Bits 7-0: DPH: Data Pointer High.
R/W
R/W
R/W
Bit7
Bit7
Bit7
Register Descriptions
The stack pointer holds the location of the top of the stack. The stack pointer is
incremented before every PUSH operation. The SP register defaults to 0x07 after reset.
The DPL register is the low byte of the 16-bit DPTR. DPTR is used to access indirectly
addressed RAM and Flash Memory.
The DPH register is the high byte of the 16-bit DPTR. DPTR is used to access indirectly
addressed RAM and Flash Memory.
R/W
R/W
R/W
Bit6
Bit6
Bit6
R/W
R/W
R/W
Bit5
Bit5
Bit5
Figure 8.5. DPH: Data Pointer High Byte
Figure 8.4. DPL: Data Pointer Low Byte
Figure 8.3. SP: Stack Pointer
R/W
R/W
R/W
Bit4
Bit4
Bit4
Rev. 1.2
R/W
R/W
R/W
Bit3
Bit3
Bit3
R/W
R/W
R/W
Bit2
Bit2
Bit2
R/W
R/W
R/W
Bit1
Bit1
Bit1
C8051F018
C8051F019
R/W
R/W
R/W
Bit0
Bit0
Bit0
SFR Address:
SFR Address:
SFR Address:
Reset Value
Reset Value
Reset Value
00000111
00000000
00000000
0x81
0x82
0x83
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