C8051F021 Silicon Laboratories Inc, C8051F021 Datasheet - Page 248

• Manufacturer Part Number: C8051F021
• Description: IC 8051 MCU 64K FLASH 64TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F02xr

Specifications of C8051F021

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 32
• 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 8x8b, 8x12b; D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

C8051F020/1/2/3
248
Bits 7-0: RCAP4L: Timer 4 Capture Register Low Byte.
Bits 7-0: RCAP4H: Timer 4 Capture Register High Byte.
Bits 7-0: TL4: Timer 4 Low Byte.
Bits 7-0: TH4: Timer 4 High Byte.
R/W
R/W
R/W
R/W
Bit7
Bit7
Bit7
Bit7
The RCAP4L register captures the low byte of Timer 4 when Timer 4 is configured in capture mode.
When Timer 4 is configured in auto-reload mode, it holds the low byte of the reload value.
The RCAP4H register captures the high byte of Timer 4 when Timer 4 is configured in capture mode.
When Timer 4 is configured in auto-reload mode, it holds the high byte of the reload value.
The TL4 register contains the low byte of the 16-bit Timer 4.
The TH4 register contains the high byte of the 16-bit Timer 4.
R/W
R/W
R/W
R/W
Bit6
Bit6
Bit6
Bit6
Figure 22.30. RCAP4H: Timer 4 Capture Register High Byte
Figure 22.29. RCAP4L: Timer 4 Capture Register Low Byte
R/W
R/W
R/W
R/W
Bit5
Bit5
Bit5
Bit5
Figure 22.32. TH4 Timer 4 High Byte
Figure 22.31. TL4: Timer 4 Low Byte
R/W
R/W
R/W
R/W
Bit4
Bit4
Bit4
Bit4
Rev. 1.4
R/W
R/W
R/W
R/W
Bit3
Bit3
Bit3
Bit3
R/W
R/W
R/W
R/W
Bit2
Bit2
Bit2
Bit2
R/W
R/W
R/W
R/W
Bit1
Bit1
Bit1
Bit1
R/W
R/W
R/W
R/W
Bit0
Bit0
Bit0
Bit0
SFR Address:
SFR Address:
SFR Address:
SFR Address:
00000000
00000000
00000000
00000000
Reset Value
Reset Value
Reset Value
Reset Value
0xE4
0xE5
0xF4
0xF5