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MC68HC08LJ12CPB Datasheet(PDF) 9 Page - Freescale Semiconductor, Inc |
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MC68HC08LJ12CPB Datasheet(HTML) 9 Page - Freescale Semiconductor, Inc |
9 / 16 page HC908LJ12AD/D MC68HC08LJ12 Addendum to MC68HC908LJ12 Technical Data MC68HC08LJ12 The MC68HC08LJ12 is the ROM part equivalent to the MC68HC908LJ12. MCU Block Diagram Figure 4 shows the block diagram of the MC68HC08LJ12. Memory Map The MC68HC08LJ128 has 12,288 bytes of user ROM from $C000 to $EFFF, and 48 bytes of user ROM vectors from $FFD0 to $FFFF. On the MC68HC908LJ12 these memory locations are FLASH memory. Figure 5 shows the memory map of the MC68HC08LJ12. Reserved Registers The two registers at $FE08 and $FE09 are reserved locations on the MC68HC08LJ12. On the MC68HC908LJ12, these two locations are the FLASH control register and the FLASH block protect register respectively. Monitor ROM The monitor program (monitor ROM: $FE10–$FFCF and $FC00–$FDFF) on the MC68HC08LJ12 is for device testing only. Table 8. Summary of MC68HC08LJ12 and MC68HC908LJ12 Differences MC68HC08LJ12 MC68HC908LJ12 Operating voltages — 5.0V ± 10% 3.3V ± 10% 5.0V ± 10% Memory ($C000–$EFFF) 12,288 bytes ROM 12,288 bytes FLASH User vectors ($FFD0–$FFFF) 48 bytes ROM 48 bytes FLASH Registers at $FE08 and $FF09 Not used; locations are reserved. FLASH related registers. $FE08 — FLCR $FF09 — FLBPR Monitor ROM ($FC00–$FDFF and $FE10–$FFCF) Used for testing purposes only. Used for testing and FLASH programming/erasing. Available packages 52-pin LQFP 64-pin LQFP 64-pin QFP 52-pin LQFP 64-pin LQFP 64-pin QFP Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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