MB91F469GA datasheet(39/147 Pages) CYPRESS

номер детали	MB91F469GA

подробное описание детали	32-bit Microcontroller

PDF	147 Pages

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производитель	CYPRESS [Cypress Semiconductor]

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39 / 147 page

MB91460G Series

Document Number: 002-04606 Rev. *A

Page 38 of 146

9. Embedded Program/Data Memory (Flash)

9.1

Flash features

■ MB91F469Gx: 2112 Kbytes (32  64 Kbytes  8  8 Kbytes = 16.5 Mbits)

■ Programmable wait state for read/write access

■ Flash and Boot security with security vector at 0x0024:8000 - 0x0024:800F

■ Boot security

■ Basic specification: Same as MBM29LV400TC (except size and part of sector configuration)

9.2

Operation modes

9.2.1

64-bit CPU mode:

■ CPU reads and executes programs in word (32-bit) length units.

■ Flash writing is not possible.

■ Actual Flash Memory access is performed in d-word (64-bit) length units.

9.2.2

32-bit CPU mode :

■ CPU reads and executes programs in word (32-bit) length units.

■ Actual Flash Memory access is performed in word (32-bit) length units.

9.2.3

16-bit CPU mode :

■ CPU reads and writes in half-word (16-bit) length units.

■ Program execution from the Flash is not possible.

■ Actual Flash Memory access is performed in half-word (16-bit) length units.

Note: The operation mode of the flash memory can be selected using a Boot-ROM function. The function start address is 0xBF60.

The parameter description is given in the Hardware Manual in chapter 54.6 "Flash Access Mode Switching".

MB91F469GA датащи(PDF) 39 Page - Cypress Semiconductor