C8051F019 Silicon Laboratories Inc, C8051F019 Datasheet - Page 79

• 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

79
JTAGRST
(Note: Do not use read-modify-write operations on this register.)
Bit7:
Bit6:
Bit5:
Bit4:
Bit3:
Bit2:
Bit1:
Bit0:
C8051F018
C8051F019
Bit7
R
0: JTAG is not currently in reset state.
1: JTAG is in reset state.
CNVRSEF: Convert Start Reset Source Enable and Flag
Write
0: CNVSTR is not a reset source
1: CNVSTR is a reset source (active low)
Read
0: Source of prior reset was not from CNVSTR
1: Source of prior reset was from CNVSTR
Write
0: Comparator 0 is not a reset source
1: Comparator 0 is a reset source (active low)
Read
Note: The value read from C0RSEF is not defined if Comparator 0 has not been enabled as a
reset source.
0: Source of prior reset was not from Comparator 0
1: Source of prior reset was from Comparator 0
Write
0: No Effect
1: Forces an internal reset. /RST pin is not affected.
Read
0: Prior reset source was not from write to the SWRSF bit.
1: Prior reset source was from write to the SWRSF bit.
WDTRSF: Watchdog Timer Reset Flag
0: Source of prior reset was not from WDT timeout.
1: Source of prior reset was from WDT timeout.
MCDRSF: Missing Clock Detector Flag
0: Source of prior reset was not from Missing Clock Detector timeout.
1: Source of prior reset was from Missing Clock Detector timeout.
Write
0: No effect
1: Forces a Power-On Reset. /RST is driven low.
Read
0: Source of prior reset was not from POR.
1: Source of prior reset was from POR.
0: Source of prior reset was not from /RST pin.
1: Source of prior reset was from /RST pin.
JTAGRST. JTAG Reset Flag.
C0RSEF: Comparator 0 Reset Enable and Flag
SWRSF: Software Reset Force and Flag
PORSF: Power-On Reset Force and Flag
PINRSF: HW Pin Reset Flag
CNVRSEF
R/W
Bit6
C0RSEF
R/W
Bit5
Figure 11.4. RSTSRC: Reset Source Register
SWRSEF
R/W
Bit4
Rev. 1.2
WDTRSF
Bit3
R
MCDRSF
Bit2
R
PORSF
R/W
Bit1
PINRSF
Bit0
R
SFR Address:
Reset Value
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0xEF