User Manual

12311-MRB
12311 Development Hardware Reference Manual, Rev. 1
3-8 Freescale Semiconductor
3.3 Reset and BDM Debug Port
The reset circuit and BDM port connector are shown in Figure 3-7. See Figure 3-1 for switch and header
locations.
• Reset switch SW1 is active low and provides a hardware reset to the MC12311 MCU die and can
also provide a RESET to the radio die by adding a jumper to J7. The Reset circuit also includes an
LED for monitoring purposes.
• The 6-pin BDM 2x3 header J5 is provided to connect the MC1213x serial debug port to a standard
HC9S08 debug module.
Figure 3-7. 12311-MRB Reset Switch and BDM Port