mpc5644a Freescale Semiconductor, Inc, mpc5644a Datasheet - Page 20

• Manufacturer Part Number: mpc5644a
• Description: Mpc5644a Microcontroller Data Sheet
• Manufacturer: Freescale Semiconductor, Inc

Overview
1.2.27
MPC5644A devices include a system development feature, the Development Trigger Semaphore (DTS) module, that enables
software to signal an external tool by driving a persistent (affected only by reset or an external tool) signal on an external device
pin. There is a variety of ways this module can be used, including as a component of an external real-time data acquisition
system
1.3
1.3.1
Figure 1
20
— 64-bit Censorship password register
— If the external tool writes a 64-bit password that matches the Serial Boot password stored in the internal flash
shows a top-level block diagram of the MPC5644A series.
MPC5644A series architecture
shadow row, Censorship is disabled until the next system reset.
Development Trigger Semaphore (DTS)
Block diagram
Preliminary—Subject to Change Without Notice
MPC5644A Microcontroller Data Sheet, Rev. 4
Freescale Semiconductor