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PIC16C72-04/SS Datasheet(PDF) 19 Page - Microchip Technology |
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PIC16C72-04/SS Datasheet(HTML) 19 Page - Microchip Technology |
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19 / 288 page ![]() © 1997 Microchip Technology Inc. DS30390E-page 19 PIC16C7X 4.0 MEMORY ORGANIZATION 4.1 Program Memory Organization The PIC16C7X family has a 13-bit program counter capable of addressing an 8K x 14 program memory space. The amount of program memory available to each device is listed below: For those devices with less than 8K program memory, accessing a location above the physically implemented address will cause a wraparound. The reset vector is at 0000h and the interrupt vector is at 0004h. FIGURE 4-1: PIC16C72 PROGRAM MEMORY MAP AND STACK Applicable Devices 72 73 73A 74 74A 76 77 Device Program Memory Address Range PIC16C72 2K x 14 0000h-07FFh PIC16C73 4K x 14 0000h-0FFFh PIC16C73A 4K x 14 0000h-0FFFh PIC16C74 4K x 14 0000h-0FFFh PIC16C74A 4K x 14 0000h-0FFFh PIC16C76 8K x 14 0000h-1FFFh PIC16C77 8K x 14 0000h-1FFFh PC<12:0> 13 0000h 0004h 0005h 07FFh 1FFFh Stack Level 1 Stack Level 8 Reset Vector Interrupt Vector On-chip Program Memory CALL, RETURN RETFIE, RETLW 0800h FIGURE 4-2: PIC16C73/73A/74/74A PROGRAM MEMORY MAP AND STACK PC<12:0> 13 0000h 0004h 0005h 07FFh 0800h 0FFFh 1000h 1FFFh Stack Level 1 Stack Level 8 Reset Vector Interrupt Vector On-chip Program On-chip Program Memory (Page 1) Memory (Page 0) CALL, RETURN RETFIE, RETLW |
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