Section 14 Direct Memory Access Controller (DMAC)
Rev.1.00 Dec. 13, 2005 Page 558 of 1286
REJ09B0158-0100
Figure 14.1 shows the block diagram of the DMAC.
Iteration
control
DMAC channels 6 to 11
DMAC
SARm
DARm
TCRm
CHCRm
DMAOR1
SARBn
DARBn
TCRBn
Register
control
Start-up
control
Request
priority
control
Bus
interface
Iteration
control
DMAC channels 0 to 5
SARm
DARm
TCRm
CHCRm
DMAOR0
DMARS0-2
SARBn
DARBn
TCRBn
Register
control
Start-up
control
Request
priority
control
Bus
interface
On-chip memory
Peripheral
module
Interrupt controller
Peripheral
bus bridge
Peripheral
bus
DMA transfer request signal
DMINTm
[Legend]
m:
0,1,2,3,4,5 for channels 0 to 5; 6,7,8,9,10,11 for channels 6 to 11
n:
0,1,2,3 for channels 0 to 5; 6,7,8,9 for channels 6 to 11
Note:
*
The half-end interrupt request is available in channels 0 to 3.
CHCRm:
DARBn:
DARm:
DMAE:
DMAOR0 and
DMAOR1:
DMA channel control register
DMA destination address register B
DMA destination address register
DMA Address error interrupt request
DMA operation registers 0 and 1
DMARS0 to
DMARS2:
DMINTm:
SARBn:
SARm:
TCRBn:
TCRm:
DMA extended resource selectors 0 to 2
DMA transfer end/half-end interrupt request from channel m
*
DMA source address register B
DMA source address register
DMA transfer count register B
DMA transfer count register
DMAE
DMINTm
DREQ0
to
DREQ3
DRAK0
to
DRAK3
DACK0
to
DACK3
DMA transfer acknowledge signal
External ROM
External RAM
External I/O
(memory mapped)
Local bus state
controller
DDR-SDRAM
interface
PCI controller
External I/O
(with acknowledge-
ment)
SuperHyw
a
y b
us
Figure 14.1 Block Diagram of DMAC
Summary of Contents for SH7780 Series
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Page 82: ...Section 1 Overview Rev 1 00 Dec 13 2005 Page 32 of 1286 REJ09B0158 0100 ...
Page 122: ...Section 3 Instruction Set Rev 1 00 Dec 13 2005 Page 72 of 1286 REJ09B0158 0100 ...
Page 146: ...Section 4 Pipelining Rev 1 00 Dec 13 2005 Page 96 of 1286 REJ09B0158 0100 ...
Page 196: ...Section 6 Floating Point Unit FPU Rev 1 00 Dec 13 2005 Page 146 of 1286 REJ09B0158 0100 ...
Page 292: ...Section 9 L Memory Rev 1 00 Dec 13 2005 Page 242 of 1286 REJ09B0158 0100 ...
Page 492: ...Section 12 DDR SDRAM Interface DDRIF Rev 1 00 Dec 13 2005 Page 442 of 1286 REJ09B0158 0100 ...
Page 674: ...Section 15 Clock Pulse Generator CPG Rev 1 00 Dec 13 2005 Page 624 of 1286 REJ09B0158 0100 ...
Page 692: ...Section 16 Watchdog Timer and Reset Rev 1 00 Dec 13 2005 Page 642 of 1286 REJ09B0158 0100 ...
Page 726: ...Section 18 Timer Unit TMU Rev 1 00 Dec 13 2005 Page 676 of 1286 REJ09B0158 0100 ...
Page 1032: ...Section 25 Audio Codec Interface HAC Rev 1 00 Dec 13 2005 Page 982 of 1286 REJ09B0158 0100 ...
Page 1150: ...Section 28 General Purpose I O GPIO Rev 1 00 Dec 13 2005 Page 1100 of 1286 REJ09B0158 0100 ...
Page 1184: ...Section 29 User Break Controller UBC Rev 1 00 Dec 13 2005 Page 1134 of 1286 REJ09B0158 0100 ...
Page 1266: ...Section 31 Electrical Characteristics Rev 1 00 Dec 13 2005 Page 1216 of 1286 REJ09B0158 0100 ...
Page 1328: ...Appendix Rev 1 00 Dec 13 2005 Page 1278 of 1286 REJ09B0158 0100 ...
Page 1336: ...Rev 1 00 Dec 13 2005 Page 1286 of 1286 REJ09B0158 0100 ...
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