PIC16C54-XT/P Microchip Technology, PIC16C54-XT/P Datasheet - Page 55

• Manufacturer Part Number: PIC16C54-XT/P
• Description: IC MCU OTP 512X12 18DIP
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C54-XT/P

• Core Size: 8-Bit
• Program Memory Size: 768B (512 x 12)
• Core Processor: PIC
• Speed: 4MHz
• Peripherals: POR, WDT
• Number Of I /o: 12
• Program Memory Type: OTP
• Ram Size: 25 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 6.25 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 18-DIP (0.300", 7.62mm)
• Controller Family/series: PIC16C
• No. Of I/o's: 12
• Ram Memory Size: 25Byte
• Cpu Speed: 4MHz
• No. Of Timers: 1
• Package: 18PDIP
• Device Core: PIC
• Family Name: PIC16
• Maximum Speed: 4 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 12
• Number Of Timers: 1
• Core: PIC
• Processor Series: PIC16C
• Maximum Clock Frequency: 40 MHz
• Data Ram Size: 25 B
• Data Rom Size: 512 B
• Mounting Style: Through Hole
• Height: 3.3 mm
• Length: 22.86 mm
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Supply Voltage (max): 6.25 V
• Supply Voltage (min): 3 V
• Width: 6.35 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -
• Lead Free Status / Rohs Status: Details

CALL
Syntax:
Operands:
Operation:
Status Affected: None
Encoding:
Description:
Words:
Cycles:
Example:
CLRF
Syntax:
Operands:
Operation:
Status Affected: Z
Encoding:
Description:
Words:
Cycles:
Example:
2002 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
0x5A
0x00
1
CALL
FLAG_REG
kkkk
011f
TOS;
f
THERE
kkkk
ffff
PC<10:9>;
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;
PIC16C5X
0100
0000
0x00
0
1
1
?
DS30453D-page 53
0000
0100