PIC16F877-20/P Microchip Technology, PIC16F877-20/P Datasheet - Page 517

• Manufacturer Part Number: PIC16F877-20/P
• Description: IC MCU FLASH 8KX14 EE 40DIP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F877-20/P

• Core Size: 8-Bit
• Program Memory Size: 14KB (8K x 14)
• Core Processor: PIC
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 33
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 368 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Controller Family/series: PIC16F
• No. Of I/o's: 33
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 368Byte
• Cpu Speed: 20MHz
• No. Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 444-1001 - DEMO BOARD FOR PICMICRO MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Example 28-2:
_________________________________________________________________________________________
Prog
Mem
-----------------------------------------------------------------------------------------
0000
0001
0002
0003
0004
0005
0006
0007
0008
0009
000A
0048
0049
004A
0060
0061
0062
00A8
00A9
00AA
-----------------------------------------------------------------------------------------
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1997 Microchip Technology Inc.
First Program Cycle
Opcode
2808
3FFF
3FFF
3FFF
2848
3FFF
3FFF
3FFF
1683
3007
009F
1C0C
284E
1806
3FFF
3FFF
3FFF
3FFF
3FFF
3FFF
Programming Cycle Listing Files
Assembly
Instruction
goto
<blank>
<blank>
<blank>
goto
<blank>
<blank>
<blank>
bsf
movlw 0x07
movwf ADCON1
btfss PIR1,RBIF
goto
btfsc PORTB,0
<blank>
<blank>
<blank>
<blank>
<blank>
<blank>
Main
ISR
STATUS,RP0
EndISR
;Main loop
; at 0x0008 |
; ISR at
;
0x0048
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Prog
Mem
0000
0001
0002
0003
0004
0005
0006
0007
0008
0009
000A
0048
0049
004A
0060
0061
0062
00A8
00A9
00AA
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Section 28. ICSP
Second Program Cycle
Opcode Assembly
0000
2860
3FFF
3FFF
0000
28A8
3FFF
3FFF
1683
3007
009F
1C0C
284E
1806
1683
3005
009F
1C0C
28AE
1806
Instruction
nop
goto
<blank>
<blank>
nop
goto
<blank>
<blank>
bsf
movlw 0x07
movwf ADCON1
btfss PIR1,RBIF
goto
btfsc PORTB,0
bsf
movlw 0x05
movwf ADCON1
btfss PIR1,RBIF
goto
btfsc PORTB,0
Main; Main now
ISR ; ISR now at
STATUS,RP0
EndISR
STATUS,RP0
EndISR
;
;
DS31028A-page 28-9
at 0x0060
0x00A8
28