PIC16F946T-I/PT Microchip Technology, PIC16F946T-I/PT Datasheet - Page 201

• 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

TABLE 16-4:
© 2005 Microchip Technology Inc.
ADCON0
OPTION_REG
TRISA
TRISB
TRISC
TRISD
TRISE
PIE1
PIE2
PCON
OSCCON
OSCTUNE
ANSEL
PR2
SSPADD
SSPSTAT
WPUB
IOCB
CMCON1
TXSTA
SPBRG
CMCON0
VRCON
ADRESL
ADCON1
WDTCON
LCDCON
LCDPS
LVDCON
EEDATL
EEADRL
EEDATH
EEADRH
LCDDATA0
LCDDATA1
LCDDATA2
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
INITIALIZATION CONDITION FOR REGISTERS (CONTINUED)
goes too low, Power-on Reset will be activated and registers will be affected differently.
81h/181h
86h/186h
Address
10Ch
10Dh
10Eh
105h
107h
108h
109h
10Fh
110h
111h
112h
8Ch
8Dh
8Eh
9Ch
9Dh
9Eh
1Fh
85h
87h
88h
89h
8Fh
90h
91h
92h
93h
94h
95h
96h
97h
98h
99h
9Fh
0000 0000
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
0000 0000
0000 0000
--01 --0x
-110 q000
---0 0000
1111 1111
1111 1111
0000 0000
0000 0000
1111 1111
0000 ----
---- --10
0000 -010
0000 0000
0000 0000
0-0- 0000
xxxx xxxx
-000 ----
---0 1000
0001 0011
0000 0000
--00 -100
0000 0000
0000 0000
--00 0000
---0 0000
xxxx xxxx
xxxx xxxx
xxxx xxxx
Power-on
Reset
• MCLR Reset
• WDT Reset
• Brown-out Reset
Preliminary
0000 0000
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
0000 0000
0000 0000
--0u --uu
-110 x000
---u uuuu
1111 1111
1111 1111
0000 0000
0000 0000
1111 1111
0000 ----
---- --10
0000 -010
0000 0000
0000 0000
0-0- 0000
uuuu uuuu
-000 ----
---0 1000
0001 0011
0000 0000
--00 -100
0000 0000
0000 0000
0000 0000
0000 0000
uuuu uuuu
uuuu uuuu
uuuu uuuu
(1)
(1,5)
• Wake-up from Sleep
• Wake-up from Sleep
through interrupt
through WDT time-out
PIC16F946
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
--uu --uu
-uuu uuuu
---u uuuu
uuuu uuuu
1111 1111
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu ----
---- --uu
uuuu -uuu
uuuu uuuu
uuuu uuuu
u-u- uuuu
uuuu uuuu
-uuu ----
---u uuuu
uuuu uuuu
uuuu uuuu
--uu -uuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
DS41265A-page 199