User`s manual

1.2 MC9S12DG256 features and memory map:

The MiniDragon-Plus3 board may come with theMC9S12DP256CCPV or the

MC9S12DG256CVPE installed. The MC9S12DG256 is the best replacement for the

MC9S12DP256 since the latter has been discontinued by Freescale. The only difference

between DG256 and DP256 is the number of CAN ports. The DG256 has 2 CAN ports, but the

DP256 has 5 CAN ports. Other than the different number of CAN port these two microcontrollers

have the same features. If you don't use more than 2 CAN ports these two chips are identical

and all datasheets and manuals for the DP256 can be used for the DG256.

The MC9S12DG256 microcontroller consists of a powerful 16-bit CPU (central processing unit),

256K bytes of flash memory, 12K bytes of RAM, 4K bytes of EEPROM and many on-chip

peripherals.

The main features of the MC9S12DG256 are listed below:

• Powerful 16-bit CPU

• 256K bytes of flash memory

• 12K bytes of RAM

• 4K bytes of EEPROM

• SCI ports

• SPI ports

• CAN 2.0 ports

• I

C interface

• 8-ch 16-bit timers

• 8-ch 8-bit or 4-ch 16 bit PWM

• 16-channel 10-bit A/D converter

• Fast 25 MHz bus speed via on-chip Phase Lock Loop

• BDM for in-circuit programming and debugging

• 112-pin LQFP package offers up to 91 I/O in a small footprint