W681307 Datasheet, PDF (79/160 Pages) Winbond – USB1.1 CODEC Microprocessor Control Unit with 32KB Mask ROM and 4KB RAM

W681307
11.7
MASK ROM Mode
Mask ROM Mode is designed to use the internal mask ROM, besides this MCU chip also can disable the internal mask ROM to use
external flash ROM. Although MCU chip provide ISP mode and MASK ROM mode but you cannot use it simultaneously. Each function
is independent function.
11.7.1
Usage
When set EXT_ROM pin to low, the chip will execute the internal mask ROM code. When set EXT_ROM pin to high, the chip will
execute the external flash ROM code.
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Publication Release Date: May, 2007
Revision 1.3