Possible Data Transfers; Possible Transfer Sizes And Types - Texas Instruments OMAP5910 Technical Reference Manual

Table 5–1. Possible Data Transfers
Destinations EMIFS
vs. Sources Bus
EMIFS bus Yes
EMIFF bus Yes
IMIF bus Yes
TIPB Yes
MPUI Yes
Local bus Yes
Table 5–2. Possible Transfer Sizes and Types
Destination:
8-Bit TIPB
Source
8-bit TIPB Valid only with
no packing
s8
8-bit Valid only with
non-TIPB no packing
s8
16-bit Not allowed
TIPB
16-bit Valid with s8 and
non-TIPB no packing
32-bit Not allowed
TIPB
32-bit Valid with s8 and
non-TIPB no packing
Note: s8 = 8-bit scalar data type; s16 = 16-bit scalar data type; s32 = 32-bit scalar data type
EMIFF IMIF
Bus Bus
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Destination: Destination:
8-Bit Non-TIPB 16-Bit TIPB
Valid Not allowed
s8
Valid Not allowed
s8
Valid Valid only with
no packing
s16
s16
Valid Valid only with
no packing
s8
s16
Valid Not allowed
s32
Valid Valid only with
no packing
s8
s16
TIPB MPUI
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Destination:
16-Bit
Non-TIPB
Valid
s8
Valid
s8,s16
Valid
s16
Valid
s8,s16
Valid
s32
Valid
s8,s16
System DMA Controller
Introduction
LCD Local Bus
No Yes
Yes Yes
Yes Yes
No Yes
No Yes
No Yes
Destination:
Destination:
32-Bit
32-Bit TIPB
Non-TIPB
Not allowed Valid
s8
Not allowed Valid
s8,s16,32
Not allowed Valid
s16
Valid only with Valid
packing
s8,s16,32
s32
Valid Valid
s32 s32
Valid S32 Valid
s8,s16,32
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