illustrates the SRAM accesses within the device.
SRAM controller
Backdoor
SRAM_L
SRAM_U
Frontdoor
Figure 29-3. SRAM access diagram
The following simultaneous accesses can be made to different logical halves of the
SRAM:
• Core code and core system
• Core code and non-core master
• Core system and non-core master
NOTE
Two non-core masters cannot access SRAM simultaneously.
The required arbitration and serialization is provided by the
crossbar switch. The SRAM_L and SRAM_U arbitration is
controlled by the SRAM controller based on the configuration
bits in the MCM module.
NOTE
Burst-access cannot occur across the 0x2000_0000 boundary
that separates the two SRAM arrays. The two arrays should be
treated as separate memory ranges for burst accesses.
29.4.3 Cache Function
The cache on this device is structured as follows. The cache has a 2-way set-associative
cache structure with a total size of 4 KBytes for the Code Cache. The cache has 32-bit
address and data paths and a 16-byte line size. The cache tags and data storage use single-
port, synchronous RAMs.
Chapter 29 Local Memory Controller (LMEM)
MWCT101xS Series Reference Manual, Rev. 3, 07/2019
NXP Semiconductors
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