Static RAM (SRAM)
MPC5606S Microcontroller Reference Manual, Rev. 7
Freescale Semiconductor 1105
Chapter 33
Static RAM (SRAM)
33.1 Introduction
The MPC5606S family offers 24 KB or 48 KB of general purpose system SRAM (with ECC protection).
Some family members also include 160 KB of graphics SRAM (without ECC protection). Details of the
SRAM areas and their features for each family member are shown in
33.2 General-purpose SRAM
The general-purpose SRAM comprises 8 KB of standby SRAM plus 16 KB or 40 KB of SRAM that may
or may not be enabled in standby mode. The SRAM provides the following features:
• SRAM can be read/written from any bus master
• Byte, halfword and word addressable
• ECC protected with single-bit correction and double-bit detection
33.3 Graphics SRAM
The 160 KB of graphics SRAM has no ECC protection and is not powered during standby mode.
33.4 Low-power configuration
In order to reduce leakage, only an 8 KB portion of the SRAM remains powered by default during standby
mode.
Table 33-1. SRAM memory map
Address range Size [KB]
5602S
5604S
5606S
Region
0x40000000 0x40001FFF 8 Ye s Ye s Ye s SRAM (ECC protection, standby support)
0x40002000 0x40005FFF 16 Ye s Ye s Ye s SRAM (ECC protection, standby support
is programmable)
0x40006000 0x4000BFFF 24 No Ye s Ye s SRAM (ECC protection, standby support
is programmable)
0x4000C000 0x5FFFFFFF 524240 — — — Reserved
0x60000000 0x60027FFF 160 No No Ye s Graphics SRAM (no ECC protection, no
standby support)
0x60028000 0x7FFFFFFF 524128 — — — Reserved
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