Datasheet

PRODUCTPREVIEW
A registerfile
Datapath1 Datapath2
Bregisterfile
D2
S2
M2
xx
xx
L2
Instructiondecode
M1
xx
xx
L1
S1
D1
16/32-bitinstructiondispatch
Instructionfetch
SPLOOP buffer
64 64
C64x+CPU
256
32
L1Dcache/SRAM
Bandwidthmanagement
Memoryprotection
L1datamemorycontroller
IDMA
256
256
Bandwidthmanagement
L1programmemorycontroller
Memoryprotection
256
Advancedevent
triggering
(AET)
Interrupt
andexception
controller
Powercontrol
L2memory
controller
256
256
MasterDMA
SlaveDMA
128
256
L1P cache/SRAM
L2cache/
SRAM
256
128
128
Toprimary
switchfabric
Cache
control
Bandwidth
management
Memory
protection
Cachecontrol
Cachecontrol
Internal
ROM
256
Configuration
registers
32
ToChip
registers
Externalmemory
controller
TMS320C6472
SPRS612G–JUNE 2009– REVISED JULY 2011 www.ti.com
5 C64x+ Megamodule
The C64x+ Megamodule consists of several components — the C64x+ CPU, the L1 program and data
memory controllers, the L2 memory controller, the internal DMA (IDMA), the interrupt controller,
power-down controller, and external memory controller. The C64x+ Megamodule also provides support for
memory protection (for L1P, L1D, and L2 memories) and bandwidth management (for resources local to
the C64x+ Megamodule). Figure 5-1 shows a block diagram of the C64x+ Megamodule.
Figure 5-1. 64x+ Megamodule Block Diagram
For more detailed information on the TMS320C64x+ megamodule on the C6472 device, see the
TMS320C64x+ DSP Megamodule Reference Guide (literature number SPRU871).
5.1 Memory Architecture
The TMS320C6472 device contains a 608KB level-2 memory (L2), a 32KB level-1 program memory
(L1P), and a 32KB level-1 data memory (L1D).
The L1P memory configuration for the C6472 device is as follows:
• Region 0 size is 0K bytes (disabled).
• Region 1 size is 32K bytes with no wait states.
The L1D memory configuration for the C6472 device is as follows:
• Region 0 size is 0K bytes (disabled).
• Region 1 size is 32K bytes with no wait states.
96 C64x+ Megamodule Copyright © 2009–2011, Texas Instruments Incorporated
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