mc9s12xs128 Freescale Semiconductor, Inc, mc9s12xs128 Datasheet - Page 147

• Manufacturer Part Number: mc9s12xs128
• Description: Hcs12 Microcontrollers 16-bit Automotive Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Memory Mapping Control (S12XMMCV4)
3.4.3
Chip Bus Control
The MMC controls the address buses and the data buses that interface the S12X masters (CPU, BDM )
with the rest of the system (master buses). In addition the MMC handles all CPU read data bus swapping
operations. All internal resources are connected to specific target buses (see
Figure
3-20).
BDM
CPU
S12X1
S12X0
MMC
Address Decoder & Priority
DBG
Target Bus Controller
XBUS0
Data FLASH
PGMFLASH
RAM
Peripherals
Figure 3-20. MMC Block Diagram
S12XS Family Reference Manual, Rev. 1.10
Freescale Semiconductor
147