W77L516A Datasheet, PDF (68/89 Pages) List of Unclassifed Manufacturers – 8-BIT MICROCONTROLLER

W77L516A
15. IN-SYSTEM PROGRAMMING
15.1 The Loader Program locates at LDFLASH memory.
CPU is Free Run at APFLASH memory. CHPCON register had been set #03H value before CPU has
entered idle state. CPU will switch to LDFLASH memory and execute a reset action. H/W reboot mode
will switch to LDFLASH memory, too. Set SFRCN register where it locates at user's loader program to
update APFLASH memory. Set a SWRESET ( CHPCON = #83H) to switch back APFLASH after CPU
has updated APFLASH program. CPU will restart to run program from reset state.
15.2 The Loader Program locates at APFLASH memory.
CPU is Free Run at APFLASH memory. CHPCON register had been set #01H value before CPU has
entered idle state. Set SFRCN register to update LDFLASH. CPU will continue to run user's APFLASH
program after CPU has updated program. Please refer demonstrative code to understand other detail
description.
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