MC9S12T64 Datasheet, PDF (518/608 Pages) Motorola, Inc – Specification

Freescale Semiconductor, Inc.
Fast Background Debug Module (FBDM)
• Nine hardware commands using free cycles, if available, for
minimal CPU intervention
• Hardware commands not requiring active BDM
• 15 firmware commands execute from on the standard BDM
firmware lookup table
• Instruction tagging capability
• Software control of BDM operation during wait mode
• Software selectable clocks
• BDM disabled when secure feature is enabled.
• Selectable SPI type interface (matches Motorola standard SPI
phase =1, polarity =1)
• In SPI mode, word reads are accelerated by sending next address
while receiving data
• In SPI mode, the interface will always force a steal in order to
make BDM instructions faster
MC9S12T64Revision 1.1.1
Fast Background Debug Module (FBDM)
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