PIC10F320 View Datasheet(PDF) - Microchip Technology
Part Name
Description
MFG CO.
'PIC10F320' PDF : 193 Pages View PDF
PIC10(L)F320/322
FIGURE 9-2:
FLASH PROGRAM MEMORY READ CYCLE EXECUTION
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
Flash ADDR
PC
PC + 1
PMADRH,PMADRL
PPCC++33
PC + 4
PC + 5
Flash Data
INSTR (PC)
INSTR (PC + 1) PMDATH,PMDATL INSTR (PC + 3) INSTR (PC + 4)
RD bit
INSTR(PC - 1)
executed here
BSF PMCON1,RD
executed here
INSTR(PC + 1)
instruction ignored
Forced NOP
executed here
INSTR(PC + 2)
instruction ignored
Forced NOP
executed here
INSTR(PC + 3)
executed here
INSTR(PC + 4)
executed here
PMDATH
PMDATL
Register
EXAMPLE 9-1: FLASH PROGRAM MEMORY READ
* This code block will read 1 word of program
* memory at the memory address:
PROG_ADDR_HI: PROG_ADDR_LO
* data will be returned in the variables;
* PROG_DATA_HI, PROG_DATA_LO
BANKSEL
MOVLW
MOVWF
MOVLW
MOVWF
PMADRL
PROG_ADDR_LO
PMADRL
PROG_ADDR_HI
PMADRH
; not required on devices with 1 Bank of SFRs
;
; Store LSB of address
;
; Store MSB of address
BCF
PMCON1,CFGS
; Do not select Configuration Space
BSF
PMCON1,RD
; Initiate read
NOP
; Ignored (Figure 9-2)
NOP
; Ignored (Figure 9-2)
MOVF
MOVWF
MOVF
MOVWF
PMDATL,W
PROG_DATA_LO
PMDATH,W
PROG_DATA_HI
; Get LSB of word
; Store in user location
; Get MSB of word
; Store in user location
DS40001585D-page 52
2011-2015 Microchip Technology Inc.
Share Link: 
