PowerPC-MPC56xx 启动模式

There are two external pins on the microcontroller that are latched during reset and used to determine
whether the microcontroller will boot from flash memory or attempt a serial download via FlexCAN or
LINFlexD (RS232):
? FAB (Force Alternate Boot mode) on pin PA[9]
? ABS (Alternate Boot Select) on pin PA[8]

PowerPC-MPC56xx 启动模式

原文：https://www.cnblogs.com/wjcdx/p/9206448.html