Texas Instruments OMAP5912 Reference Manual page 225

Figure 43. OMAP 3.2 MPUI and MPUI Port Environment
DSP MMU
ROM
RAM
Flash
32
16,32
32
OCP
T1/T2
Memory
interface
SDRAM
SBSRAM
32
32
OCP-I
5.1 MPUI
SPRU749A
DSP subsystem
OMAP
E
M
I
32
F
MPU
decoder
MPU bus
OCP-I
32 bus
MPU
32
The MPUI module connects the MPU, system DMA, and OCP-I to the MPUI
port. The MPUI allows sharing of the DSP internal memories and peripherals
with the MPU/system DMA/OCP-I.
The MPUI module supports two access modes: host-only mode (HOM) and
shared access mode (SAM).
In HOM, the MPUI can access the SARAM and DSP peripherals. An MPUI port
RAM configuration register can set the range of the SARAM (host-only RAM)
DSP
core
MPUI port RAM
DARAM
DSP
TIPB
bridge
SARAM
DSP DMA MPUI port
16
MPUI
Endianism
32
32
TIPB bridge
32
DMA bus
DMA
MPU and MPUI Port
peripherals
DSP
16
TIPB
Shared
peripherals
16
TIPB
32
MPU
peripherals
TIPB
OMAP3.2 Subsystem
Public
DSP
Public
MPU
167