Memory Protection Unit (Mpu) - Texas Instruments TMS320C6670 Data Manual

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7.10 Memory Protection Unit (MPU)

The C6670 supports six MPUs:
• One MPU is used to protect main CORE/3 CFG TeraNet (CFG space of all slave devices on the TeraNet is
protected by the MPU).
• Two MPUs are used for packet DMA (one for DATA PORT and another is for CFG PORT).
• One MPU is used for Semaphore.
• One MPU is used for the RAC.
• One MPU is used to protect the main CFG TeraNet of the TE_SCR_3M.
This section contains MPU register map and details of device-specific MPU registers only. For MPU features and
details of generic MPU registers, see the Memory Protection Unit (MPU) for KeyStone Devices User Guide in
2.9 ''Related Documentation from Texas Instruments'' on page
The following tables show the configuration of each MPU and the memory regions protected by each MPU.
Table 7-48 MPU Default Configuration
MPU0
Setting Main CFG SCR
Default permission Assume allowed Assume allowed
Number of allowed IDs 16
supported
Number of programmable 16
ranges supported
Compare width 1KB granularity
End of Table 7-48
Table 7-49 MPU Memory Regions
Memory Protection
MPU0 Main CFG SCR
MPU1 QM_SS DATA PORT
MPU2 QM_SS CFG PORT
MPU3 Semaphore
MPU4 RAC
MPU5 TE_SCR_3M
End of Table 7-49
Table 7-50 shows the unique Master ID assigned to each CorePac and peripherals on the device.
Table 7-50 Master ID Settings (Part 1 of 3)
Master ID C6670
0 CorePac0
1 CorePac1
2 CorePac2
3 CorePac3
4 Reserved
5 Reserved
6 Reserved
7 Reserved
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Multicore Fixed and Floating-Point System-on-Chip
MPU1 MPU2
(QM_SS DATA PORT) (QM_SS CFG PORT)
Assume allowed
16 16
5 16
1KB granularity 1KB granularity
Start Address End Address
0x01D00000 0x026203FF
0x34000000 0x340BFFFF
0x02A00000 0x02ABFFFF
0x02640000 0x026407FF
0x01F80000 0x0215FFFF
0x35000000 0x350003FF
TMS320C6670 Peripheral Information and Electrical Specifications
66.
MPU3 MPU4
Semaphore RAC
Assume allowed Assume allowed Assume allowed
16 16
1 2
1KB granularity 1KB granularity
TMS320C6670
SPRS689D—March 2012
MPU5
TE_SCR_3M
16
3
1KB granularity
179