PIC16F54-I/SS Microchip Technology, PIC16F54-I/SS Datasheet - Page 45

• Manufacturer Part Number: PIC16F54-I/SS
• Description: IC MCU FLASH 512X12 20SSOP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F54-I/SS

• Core Size: 8-Bit
• Program Memory Size: 768B (512 x 12)
• Core Processor: PIC
• Speed: 20MHz
• Peripherals: POR, WDT
• Number Of I /o: 12
• Program Memory Type: FLASH
• Ram Size: 25 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-SSOP
• Controller Family/series: PIC16F
• No. Of I/o's: 12
• Ram Memory Size: 25Byte
• Cpu Speed: 20MHz
• No. Of Timers: 1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164307 - MODULE SKT FOR PM3 28SSOPAC164014 - MODULE SKT PROMATEII 44PQFP
• Eeprom Size: -
• Data Converters: -
• Connectivity: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

CALL
Syntax:
Operands:
Operation:
Status Affected: None
Encoding:
Description:
Words:
Cycles:
Example:
CLRF
Syntax:
Operands:
Operation:
Status Affected: Z
Encoding:
Description:
Words:
Cycles:
Example:
 2004 Microchip Technology Inc.
Before Instruction
After Instruction
Before Instruction
After Instruction
FLAG_REG =
FLAG_REG =
Z
PC
PC
TOS =
=
=
Subroutine Call
[ label ] CALL k
0
(PC) + 1
k
(Status<6:5>)
0
Subroutine call. First, return
address (PC + 1) is pushed onto
the stack. The eight-bit immediate
address is loaded into PC
bits <7:0>. The upper bits
PC<10:9> are loaded from
Status<6:5>, PC<8> is cleared.
CALL is a two-cycle instruction.
1
2
HERE
Clear f
[ label ] CLRF
0
00h
1
The contents of register ‘f’ are
cleared and the Z bit is set.
1
1
CLRF
1001
0000
address (HERE)
address (THERE)
address (HERE + 1)
k
f
=
PC<7:0>;
PC<8>
Z
31
(f);
255
CALL
FLAG_REG
0x5A
0x00
1
kkkk
011f
TOS;
f
PC<10:9>;
THERE
kkkk
ffff
Preliminary
CLRW
Syntax:
Operands:
Operation:
Status Affected: Z
Encoding:
Description:
Words:
Cycles:
Example:
CLRWDT
Syntax:
Operands:
Operation:
Status Affected: TO, PD
Encoding:
Description:
Words:
Cycles:
Example:
Before Instruction
After Instruction
Before Instruction
After Instruction
WDT counter
WDT counter
WDT prescaler =
TO
PD
W
W
Z
=
=
=
Clear W
[ label ] CLRW
None
00h
1
The W register is cleared. Zero bit
(Z) is set.
1
1
CLRW
Clear Watchdog Timer
[ label ] CLRWDT
None
00h
0
1
1
The CLRWDT instruction resets the
WDT. It also resets the prescaler, if
the prescaler is assigned to the
WDT and not Timer0. Status bits
TO and PD are set.
1
1
CLRWDT
0000
0000
0x5A
0x00
1
Z
WDT prescaler (if assigned);
TO;
PD
=
=
=
=
(W);
WDT;
0100
0000
PIC16F5X
0x00
0
1
1
?
DS41213B-page 43
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