MB91F465DA Datasheet, PDF (31/140 Pages) Fujitsu Component Limited. – 32-bit Microcontroller

MB91460D Series
■ EMBEDDED PROGRAM/DATA MEMORY (FLASH)
1. Flash features
• MB91F467Dx: 1088 Kbytes (16 × 64 Kbytes + 8 × 8 Kbytes) = 8.5 Mbits
• MB91F465DA: 544 Kbytes (8 × 64 Kbytes + 4 × 8 Kbytes) = 4.25 Mbits
• Programmable wait state for read/write access
• Flash and Boot security with security vector at 0x0014:8000 - 0x0014:800F
• Boot security
• Basic specification: Same as MBM29LV400TC (except size and part of sector configuration)
2. Operation modes
(1) 64-bit CPU mode (available on MB91F467Dx only) :
• 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.
(2) 32-bit CPU mode :
• MB91F465DA: CPU reads and executes programs in word (32-bit) length units.
MB91F467Dx: CPU reads, writes and executes programs in word (32-bit) length units.
• Actual Flash Memory access is performed in word (32-bit) length units.
(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".
DS07-16612-2E
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