MPC8544COMEDEV Freescale Semiconductor, MPC8544COMEDEV Datasheet - Page 621

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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 14
Local Bus Controller
This chapter describes the local bus controller (LBC) block. It describes the external signals and the
memory-mapped registers as well as a functional description of the general-purpose chip-select machine
(GPCM), SDRAM machine, and user-programmable machines (UPMs) of the LBC. Finally, it includes an
initialization and applications information section with many specific examples of its use.
14.1
Figure 14-1
SDRAM controller.
Freescale Semiconductor
Introduction
is a functional block diagram of the LBC, which supports three interfaces: GPCM, UPM, and
Banks and
Compare
Memory
MPC8544E PowerQUICC III Integrated Host Processor Family Reference Manual, Rev. 1
Counters
Timers/
Local Address
Transfer Acknowledge
Local Data
Controller
Memory
Refresh
Local
Divider
Figure 14-1. Local Bus Controller Block Diagram
Config
Clock
Regs
CTRL
Data Machine
UPM
Address and
SDRAM
GPCM
RAM
UPM
MDVAL
LCS[0:7]
LBCTL
UPM CTRL
LGPL[0:3]
LGPL4/LUPWAIT
LGPL5
LBS[0:3]
SDRAM CTRL
LSDA10
LSDWE
LSDRAS
LSDCAS
LSDDQM[0:3]
GPCM CTRL
LOE
LGTA
LWE[0:3]
LA[27:31]
LALE
LPBSE
LDP[0:3]
MSRCID[0:4]
LAD[0:31]
LCLK[0:2]
LCKE
LSYNC_IN
LSYNC_OUT
14-1

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