MC56F8347 Freescale Semiconductor, Inc, MC56F8347 Datasheet - Page 103
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MC56F8347
Manufacturer Part Number
MC56F8347
Description
56f8300 16-bit Digital Signal Controllers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC56F8347.pdf
(172 pages)
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Part 6 System Integration Module (SIM)
6.1 Overview
The SIM module is a system catchall for the glue logic that ties together the system-on-chip. It controls
distribution of resets and clocks and provides a number of control features. The system integration module
is responsible for the following functions:
These are discussed in more detail in the sections that follow.
6.2 Features
The SIM has the following features:
Freescale Semiconductor
Preliminary
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Reset sequencing
Clock generation & distribution
Stop/Wait control
Pull-up enables for selected peripherals
System status registers
Registers for software access to the JTAG ID of the chip
Enforcing Flash security
Flash security feature prevents unauthorized access to code/data contained in on-chip Flash memory
Power-saving clock gating for peripheral
Three power modes (Run, Wait, Stop) to control power utilization
— Stop mode shuts down the 56800E core, system clock, peripheral clock, and PLL operation
— Stop mode entry can optionally disable PLL and Oscillator (low power vs. fast restart); must be
— Wait mode shuts down the 56800E core and unnecessary system clock operation
— Run mode supports full part operation
Controls to enable/disable the 56800E core WAIT and STOP instructions
Calculates base delay for reset extension based upon POR or RESET operations. Reset delay will be either
3 x 32 clocks for reset, except for POR, which is 2^21 clock cycles.
Controls reset sequencing after reset
Software-initiated reset
Four 16-bit registers reset only by a Power-On Reset usable for general-purpose software control
System Control Register
Registers for software access to the JTAG ID of the chip
explicitly done
56F8347 Technical Data, Rev.11
Overview
103
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