PIC16F946T-I/PT Microchip Technology, PIC16F946T-I/PT Datasheet - Page 219

• 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

© 2005 Microchip Technology Inc.
BTFSS
Syntax:
Operands:
Operation:
Status Affected:
Description:
CALL
Syntax:
Operands:
Operation:
Status Affected:
Description:
CLRF
Syntax:
Operands:
Operation:
Status Affected:
Description:
CLRW
Syntax:
Operands:
Operation:
Status Affected:
Description:
Bit Test f, Skip if Set
[ label ] BTFSS f,b
0
0
skip if (f<b>) = 1
None
If bit ‘b’ in register ‘f’ is ‘0’, the next
instruction is executed.
If bit ‘b’ is ‘1’, then the next
instruction is discarded and a NOP
is executed instead, making this a
two-cycle instruction.
Call Subroutine
[ label ] CALL k
0
(PC)+ 1
k
(PCLATH<4:3>)
None
Call Subroutine. First, return
address (PC + 1) is PUSHed onto
the stack. The eleven-bit
immediate address is loaded into
PC bits <10:0>. The upper bits of
the PC are loaded from PCLATH.
CALL is a two-cycle instruction.
Clear W
[ label ] CLRW
None
1
Z
W register is cleared. Zero bit (Z)
is set.
00h
Clear f
[ label ] CLRF
0
00h
1
Z
The contents of register ‘f’ are
cleared and the Z bit is set.
f
b < 7
k
f
PC<10:0>,
Z
Z
127
127
(W)
2047
(f)
TOS,
f
PC<12:11>
Preliminary
CLRWDT
Syntax:
Operands:
Operation:
Status Affected:
Description:
COMF
Syntax:
Operands:
Operation:
Status Affected:
Description:
DECF
Syntax:
Operands:
Operation:
Status Affected:
Description:
Complement f
[ label ] COMF
0
d
(f)
Z
The contents of register ‘f’ are
complemented. If ‘d’ is ‘0’, the
result is stored in W. If ‘d’ is ‘1’,
the result is stored back in
register ‘f’.
(f) - 1
Z
Clear Watchdog Timer
[ label ] CLRWDT
None
00h
0
1
1
TO, PD
CLRWDT instruction resets the
Watchdog Timer. It also resets the
prescaler of the WDT.
Status bits TO and PD are set.
Decrement f
[ label ] DECF f,d
0
d
Decrement register ‘f’. If ‘d’ is ‘0’,
the result is stored in the W
register. If ‘d’ is ‘1’, the result is
stored back in register ‘f’.
f
f
[0,1]
[0,1]
WDT prescaler,
TO
PD
(destination)
PIC16F946
127
127
WDT
(destination)
DS41265A-page 217
f,d