C8051F022-GQR Silicon Laboratories Inc, C8051F022-GQR Datasheet - Page 132

• Manufacturer Part Number: C8051F022-GQR
• Description: IC 8051 MCU 64K FLASH 100TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F02xr

Specifications of C8051F022-GQR

• 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: 64
• 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, 8x10b; D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• For Use With: 336-1200 - DEV KIT FOR F020/F021/F022/F023
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

C8051F020/1/2/3
132
(Note: Do not use read-modify-write operations on this register.)
Bit7:
Bit6:
Bit5:
Bit4:
Bit3:
Bit2:
Bit1:
Bit0:
Bit7
R
-
Reserved.
CNVRSEF: Convert Start Reset Source Enable and Flag
Write:
Read:
C0RSEF: Comparator0 Reset Enable and Flag
Write:
Read:
SWRSF: Software Reset Force and Flag
Write:
Read:
WDTRSF: Watchdog Timer Reset Flag
MCDRSF: Missing Clock Detector Flag
PORSF: Power-On Reset Force and Flag
Write:
Read:
PINRSF: HW Pin Reset Flag
CNVRSEF C0RSEF
R/W
Bit6
1: CNVSTR is a reset source (active low).
0: Source of prior reset was not CNVSTR.
1: Source of prior reset was CNVSTR.
1: Comparator0 is a reset source (active low).
1: Source of prior reset was Comparator0.
0: No Effect.
1: Forces an internal reset. /RST pin is not affected.
0: Prior reset source was not a write to the SWRSF bit.
1: Prior reset source was a write to the SWRSF bit.
0: Source of prior reset was not WDT timeout.
1: Source of prior reset was WDT timeout.
0: Source of prior reset was not Missing Clock Detector timeout.
1: Source of prior reset was Missing Clock Detector timeout.
0: No effect.
1: Forces a Power-On Reset. /RST is driven low.
0: Source of prior reset was not POR.
1: Source of prior reset was POR.
0: Source of prior reset was not /RST pin.
1: Source of prior reset was /RST pin.
0: CNVSTR is not a reset source.
0: Comparator0 is not a reset source.
0: Source of prior reset was not Comparator0.
Figure 13.4. RSTSRC: Reset Source Register
R/W
Bit5
SWRSEF WDTRSF MCDRSF
R/W
Bit4
Rev. 1.4
Bit3
R
Bit2
R
PORSF
R/W
Bit1
PINRSF
Bit0
R
SFR Address:
Reset Value
Variable
0xEF