MPC8544COMEDEV Freescale Semiconductor, MPC8544COMEDEV Datasheet - Page 159

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MPC8544COMEDEV

Manufacturer Part Number
MPC8544COMEDEV
Description
KIT DEV EXPRESS MPC8544COM
Manufacturer
Freescale Semiconductor
Type
MPUr
Datasheets

Specifications of MPC8544COMEDEV

Contents
Board
For Use With/related Products
MPC8544
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Chapter 4
Reset, Clocking, and Initialization
This chapter describes the reset, clocking, and some overall initialization of the MPC8544E, including a
definition of the reset configuration signals and the options they select. Additionally, the configuration,
control, and status registers are described. Note that other chapters in this book may describe specific
aspects of initialization for individual blocks.
4.1
The reset, clocking, and control signals provide many options for the operation of the MPC8544E.
Additionally, many modes are selected with reset configuration signals during a hard reset (assertion of
HRESET).
4.2
Table 4-1
signal descriptions, but
The following sections describe the reset and clock signals in detail.
Freescale Semiconductor
SD2_REF_CLK/
SD2_REF_CLK
HRESET_REQ
SD_REF_CLK/
SD_REF_CLK
HRESET
SRESET
SYSCLK
READY
Signal
RTC
Overview
External Signal Descriptions
summarizes the external signals described in this chapter.
MPC8544E PowerQUICC III Integrated Host Processor Family Reference Manual, Rev. 1
I/O
O Hard reset request output. An internal block requests that HRESET be asserted.
O The MPC8544E has completed the reset operation and is not in a power-down
I
I
I
I
I
I
Hard reset input. Causes a power-on reset (POR) sequence.
Soft reset input. Causes mcp assertion to the core
(nap, doze or sleep) or debug state.
Primary clock input to the MPC8544E
Real time clock input
SERDES high-speed interface reference clock
Second SERDES high-speed interface reference clock
Table 4-1
contains references to additional sections that contain more information.
Table 4-1. Signal Summary
Description
Table 4-2
and
Table 4-3
(Section/Page)
have detailed
References
4.4.4.1/4-23
4.4.4.4/4-25
4.4.4.2/4-24
4.4.4.2/4-24
4.4.1.2/4-8
4.4.1.1/4-8
4.4.2/4-9
4-1

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