參數(shù)資料
型號: MC68HC916X1
廠商: Motorola, Inc.
英文描述: 16-Bit Modular Microcontroller(16位模塊化微控制器)
中文描述: 16位微控制器模塊(16位模塊化微控制器)
文件頁數(shù): 13/172頁
文件大?。?/td> 1035K
代理商: MC68HC916X1
MC68HC916X1
MC68HC916X1TS/D
MOTOROLA
13
3 Single-Chip Integration Module
The single-chip integration module (SCIM) consists of six submodules that, with a minimum of ex-
ternal devices, control system startup, initialization, configuration, and the external bus.
shows the SCIM block diagram.
Figure 4
Figure 4 Single-Chip Integration Module Block Diagram
3.1 Overview
The system configuration block controls MCU configuration and operating mode.
The system clock generates clock signals used by the SCIM, other IMB modules, and external de-
vices. In addition, a periodic interrupt generator supports execution of time-critical control routines.
The system protection block provides bus and software watchdog monitors.
The chip-select block provides five general-purpose chip-select signals and two emulation-support
chip-select signals. The general-purpose chip-select signals have associated base address regis-
ters and option registers.
The external bus interface handles the transfer of information between IMB modules and external
address space.
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.
Table 7
byte address space return zeros when read.
shows the SCIM address map, which occupies 128 bytes. Unused registers within the 128-
S(C)IM BLOCK
SYSTEM CONFIGURATION
CLOCK SYNTHESIZER
CHIP SELECTS
EXTERNAL BUS INTERFACE
FACTORY TEST
CLKOUT
EXTAL
MODCLK
CHIP SELECTS
EXTERNAL BUS
RESET
TSC
FREEZE/QUOT
XTAL
SYSTEM PROTECTION
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