Chapter 23 Memory Mapping Control (S12XMMCV2)
MC9S12XDP512 Data Sheet, Rev. 2.11
882 Freescale Semiconductor
Wait mode
MMC is functional during wait mode.
Stop mode
MMC is inactive during stop mode.

23.1.2.2 Functional Modes

Single chip modes
In normal and special single chip mode the internal memory is used. External bus is not active.
Expanded modes
Address, data, and control signals are activated in normal expanded and special test modes when
accessing the external bus.
Emulation modes
External bus is active to emulate via an external tool the normal expanded or the normal single chip
mode.

23.1.3 Block Diagram

Figure 1-1 shows a block diagram of the MMC.
Figure 23-1. MMC Block Diagram
23.2 External Signal Description
The user is advised to refer to the SoC Guide for port configuration and location of external bus signals.
Some pins may not be bonded out in all implementations.
Peripherals
FLASH
XGATECPUBDM
Target Bus Controller
DBG
EEPROM
EBI MMC
Address Decoder & Priority
RAM