PIC16F946T-I/PT Microchip Technology, PIC16F946T-I/PT Datasheet - Page 200

• Manufacturer Part Number: PIC16F946T-I/PT
• Description: Microcontroller
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F946T-I/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 14KB (8K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 336 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TFQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MA160011 - DAUGHTER BOARD PICDEM LCD 16F91X
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

PIC16F946
TABLE 16-4:
DS41265A-page 198
W
INDF
TMR0
PCL
STATUS
FSR
PORTA
PORTB
PORTC
PORTD
PORTE
PCLATH
INTCON
PIR1
PIR2
TMR1L
TMR1H
T1CON
TMR2
T2CON
SSPBUF
SSPCON
CCPR1L
CCPR1H
CCP1CON
RCSTA
TXREG
RCREG
CCP2CON
ADRESH
Legend: u = unchanged, x = unknown, – = unimplemented bit, reads as ‘0’, q = value depends on condition.
Note 1:
Register
2:
3:
4:
5:
If V
One or more bits in INTCON and/or PIR1 will be affected (to cause wake-up).
When the wake-up is due to an interrupt and the GIE bit is set, the PC is loaded with the interrupt
vector (0004h).
See Table 16-5 for Reset value for specific condition.
If Reset was due to brown-out, then bit 0 = 0. All other Resets will cause bit 0 = u.
DD
10Ah/18Ah
10Bh/18Bh
100h/180h
102h/182h
103h/183h
104h/184h
INITIALIZATION CONDITION FOR REGISTERS
goes too low, Power-on Reset will be activated and registers will be affected differently.
01h/101h
06h/106h
0Ah/8Ah/
0Bh/8Bh/
Address
00h/80h/
02h/82h/
03h/83h/
04h/84h/
0Ch
0Dh
1Dh
05h
07h
08h
09h
0Eh
0Fh
10h
12h
13h
15h
16h
17h
18h
19h
1Ah
1Eh
11h
14h
—
xxxx xxxx
xxxx xxxx
xxxx xxxx
0000 0000
0001 1xxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
---0 0000
0000 000x
0000 0000
0000 -0-0
xxxx xxxx
xxxx xxxx
0000 0000
01-0 0-00
-000 0000
xxxx xxxx
0000 0000
0000 0000
0000 0010
000x 000x
---0 1000
0000 0000
0000 0000
--00 0000
xxxx xxxx
Power-on
Reset
• MCLR Reset
• WDT Reset
• Brown-out Reset
Preliminary
uuuu uuuu
xxxx xxxx
uuuu uuuu
0000 0000
000q quuu
uuuu uuuu
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
---0 0000
0000 000x
0000 0000
0000 -0-0
uuuu uuuu
uuuu uuuu
uuuu uuuu
01-0 0-00
-000 0000
xxxx xxxx
0000 0000
0000 0000
0000 0010
000x 000x
---0 1000
0000 0000
0000 0000
--00 0000
uuuu uuuu
(1)
(4)
• Wake-up from Sleep
• Wake-up from Sleep
through interrupt
through WDT time-out
© 2005 Microchip Technology Inc.
uuuu uuuu
uuuu uuuu
uuuu uuuu
PC + 1
uuuq quuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
---u uuuu
uuuu uuuu
uuuu uuuu
uuuu -u-u
uuuu uuuu
uuuu uuuu
uuuu uuuu
uu-u u-uu
-uuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
---u uuuu
uuuu uuuu
uuuu uuuu
--uu uuuu
uuuu uuuu
(3)
(4)
(2)
(2)