SPMCK16Z4MPV16 datasheet(107/500 Pages) FREESCALE

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M68HC16 Z SERIES

SYSTEM INTEGRATION MODULE

USER’S MANUAL

5-1

SECTION 5

SYSTEM INTEGRATION MODULE

This section is an overview of the system integration module (SIM). Refer to the

SIM

Reference Manual (SIMRM/AD) for a comprehensive discussion of SIM capabilities.

Refer to D.2 System Integration Module for information concerning the SIM address

map and register structure.

5.1 General

The SIM consists of six functional blocks. Figure 5-1 shows a block diagram of the

SIM.

The system configuration block controls MCU configuration parameters.

The system clock generates clock signals used by the SIM, other IMB modules, and

external devices.

The system protection block provides bus and software watchdog monitors. In addi-

tion, it also provides a periodic interrupt timer to support execution of time-critical con-

trol routines.

The external bus interface handles the transfer of information between IMB modules

and external address space.

The chip-select block provides 12 chip-select signals. Each chip-select signal has an

associated base address register and option register that contain the programmable

characteristics of that chip-select.

The system test block incorporates hardware necessary for testing the MCU. It is used

to perform factory tests, and its use in normal applications is not supported.

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