C8051F023R Silicon Laboratories Inc, C8051F023R Datasheet - Page 132

IC 8051 MCU 64K FLASH 64TQFP

C8051F023R

Manufacturer Part Number
C8051F023R
Description
IC 8051 MCU 64K FLASH 64TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F02xr
Datasheets

Specifications of C8051F023R

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, 8x10b; 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
-
Other names
336-1035-2
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

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