PIC16F1946-E/PT Microchip Technology, PIC16F1946-E/PT Datasheet - Page 84

• Manufacturer Part Number: PIC16F1946-E/PT
• Description: MCU 8BIT 8K FLASH 64TQFP
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16F1946-E/PT

• Core Size: 8-Bit
• Program Memory Size: 14KB (8K x 14)
• Core Processor: PIC
• Speed: 32MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 54
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 17x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 64-TFQFP
• Controller Family/series: PIC16F
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 512Byte
• Cpu Speed: 32MHz
• No. Of Timers: 5
• Interface: EUSART, I2C, SPI
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC16F/LF1946/47
6.10
Upon any Reset, multiple bits in the STATUS and
PCON register are updated to indicate the cause of the
Reset.
conditions of these registers.
TABLE 6-3:
TABLE 6-4:
DS41414B-page 84
Power-on Reset
MCLR Reset during normal operation
MCLR Reset during Sleep
WDT Reset
WDT Wake-up from Sleep
Brown-out Reset
Interrupt Wake-up from Sleep
RESET Instruction Executed
Stack Overflow Reset (STVREN = 1)
Stack Underflow Reset (STVREN = 1)
Legend: u = unchanged, x = unknown, - = unimplemented bit, reads as ‘0’.
Note 1: When the wake-up is due to an interrupt and Global Enable bit (GIE) is set, the return address is pushed on
STKOVF STKUNF RMCLR
0
0
0
0
u
u
u
u
u
u
1
u
2: If a Status bit is not implemented, that bit will be read as ‘0’.
Table 6-3
Determining the Cause of a Reset
the stack and PC is loaded with the interrupt vector (0004h) after execution of PC + 1.
0
0
0
0
u
u
u
u
u
u
u
1
RESET STATUS BITS AND THEIR SIGNIFICANCE
RESET CONDITION FOR SPECIAL REGISTERS
and
Table 6-4
Condition
1
1
1
1
u
u
u
0
0
u
u
u
RI
1
1
1
1
u
u
u
u
u
0
u
u
show the Reset
POR
0
0
0
u
u
u
u
u
u
u
u
u
Preliminary
BOR
x
x
x
0
u
u
u
u
u
u
u
u
TO
1
0
x
1
0
0
1
u
1
u
u
u
Program
PC + 1
Counter
PC + 1
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
PD
1
x
0
1
u
0
0
u
0
u
u
u
(1)
Power-on Reset
Illegal, TO is set on POR
Illegal, PD is set on POR
Brown-out Reset
WDT Reset
WDT Wake-up from Sleep
Interrupt Wake-up from Sleep
MCLR Reset during normal operation
MCLR Reset during Sleep
RESET Instruction Executed
Stack Overflow Reset (STVREN = 1)
Stack Underflow Reset (STVREN = 1)
(2)
---1 1000
---u uuuu
---1 0uuu
---0 uuuu
---0 0uuu
---1 1uuu
---1 0uuu
---u uuuu
---u uuuu
---u uuuu
Register
STATUS
 2010 Microchip Technology Inc.
Condition
00-- 110x
uu-- 0uuu
uu-- 0uuu
uu-- uuuu
uu-- uuuu
00-- 11u0
uu-- uuuu
uu-- u0uu
1u-- uuuu
u1-- uuuu
Register
PCON