The MC9S12A512 Processor
Block diagram of the HCS12 9S12 microcontroller showing its timing and control subsystems.

Block diagram schematic of the Freescale 9S12/HCS12 processor

Freescale HC12 HCS12 9S12 block diagram — Fig. 1 **9S12 HCS12 block diagram showing the internal subsystems and components of the MC9S12A512 MC9S12DP512 MCU, including its CPU, clock, ECT (Enhanced Capture Timer), ATD, EEPROM, RAM, PWM and SPI**

The MC9S12A512 used in the PDQ Board and PDQ Screen differs from the MC9S12DP512 shown above only in that it lacks the CAN0-CAN4 ports. For a brief description of the microcontroller's capabilities, see Overview of the MC9S12A512 microcontroller.

Low cost single board computer, HCS12 9S12 development boards — Fig. 2 **The C-language-programmable PDQ Board™ is a single board computer (SBC) based on the Freescale 9S12 (HCS12) microcontroller. It is ideal for implementing instrument control and automation functions.**

See also → The MC9S12A512 Processor

This page is about: Freescale 9S12, HCS12, 68HC12, 68HCS12, MC9S12A512, MC9S12DP512, Freescale 16 Bit Microcontroller Block Diagram Schematic and Capabilities – Capabilities and block diagram schematic of the Motorola Freescale 9S12 HCS12, 68HC12, 68HCS12, MC9S12A512, MC9S12DP512 MCU processor microcontroller with CPU, clock, ECT (Enhanced Capture Timer), ATD, EEPROM, RAM, PWM and SPI HCS12 microcontroller, CPU, clock, ECT (Enhanced Capture Timer), ATD, EEPROM, RAM, PWM and SPI

The MC9S12A512 ProcessorBlock diagram of the HCS12 9S12 microcontroller showing its timing and control subsystems.

Block diagram schematic of the Freescale 9S12/HCS12 processor

The MC9S12A512 Processor
Block diagram of the HCS12 9S12 microcontroller showing its timing and control subsystems.