PIC16F1934-E/ML Microchip Technology, PIC16F1934-E/ML Datasheet - Page 67

• Manufacturer Part Number: PIC16F1934-E/ML
• Description: IC PIC MCU FLASH 256KX7 44-QFN
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16F1934-E/ML

• Program Memory Type: FLASH
• Program Memory Size: 7KB (4K x 14)
• Package / Case: 44-QFN
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 32MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 36
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 14x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: EUSART/MI2C/SPI
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 36
• Number Of Timers: 5
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 14-ch x 10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

3.9
The Power Control (PCON) register has six Status bits
to indicate what type of Reset that last occurred.
3.9.1
The Power Control (PCON) register contains flag bits
(refer to Table 3-6) to differentiate between a:
• Power-on Reset (POR)
• Brown-out Reset (BOR)
• Reset Instruction Reset (RI)
• Stack Overflow Reset (STKOVF)
• Stack Underflow Reset (STKUVF)
REGISTER 3-3:
© 2008 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
u = bit is unchanged
‘1’ = Bit is set
bit 7
bit 6
bit 5-4
bit 3
bit 2
bit 1
bit 0
STKOVF
R/W-0/q
Power Control (PCON) Register
PCON REGISTER
STKOVF: Stack Overflow Flag bit
1 = A Stack Overflow occurred (more CALLs than fit on the stack)
0 = A Stack Overflow has not occurred or set to ‘0’ by firmware
STKUNF: Stack Underflow Flag bit
1 = A Stack Underflow occurred (more RETURNs than CALLs)
0 = A Stack Underflow has not occurred or set to ‘0’ by firmware
Unimplemented: Read as ‘0’
RMCLR: MCLR Reset Flag bit
1 = A MCLR Reset has not occurred or set to ‘1’ by firmware
0 = A MCLR Reset has occurred (set to ‘0’ in hardware when a MCLR Reset occurs)
RI: RESET Instruction Flag bit
1 = A RESET instruction has not been executed or set to ‘1’ by firmware
0 = A RESET instruction has been executed (set to ‘0’ in hardware upon executing a RESET instruction)
POR: Power-on Reset Status bit
1 = No Power-on Reset occurred
0 = A Power-on Reset occurred (must be set in software after a Power-on Reset occurs)
BOR: Brown-out Reset Status bit
1 = No Brown-out Reset occurred
0 = A Brown-out Reset occurred (must be set in software after a Power-on Reset or Brown-out Reset
STKUNF
R/W-0/q
occurs)
PCON: POWER CONTROL REGISTER
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
U-0
—
U-0
Preliminary
—
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
q = Value depends on condition
R/W-1/q
RMCLR
The PCON register also controls the software enable of
the BOR.
The PCON register bits are shown in Register 3-3.
PIC16F193X/LF193X
R/W-1/q
RI
R/W-q/u
POR
DS41364A-page 65
R/W-q/u
BOR
bit 0