HD6417615 Hitachi Semiconductor, HD6417615 Datasheet - Page 470

• Manufacturer Part Number: HD6417615
• Description: Hardware Manual
• Manufacturer: Hitachi Semiconductor

11.1.2
Figure 11.1 shows the DMAC block diagram.
On-chip peripheral module request:
On-chip peripheral
module request
acknowledge)
External I/O
External I/O
External
External
(memory
mapped)
ROM
Block Diagram
RAM
(with
peripheral
On-chip
DREQn
module
DACKn
DEIn
BH
VCRDMAn:
memory
On-chip
DMAOR:
CHCRn:
DARn:
SARn:
TCRn:
DEIn:
Bus controller
BH:
Figure 11.1 DMAC Block Diagram
n:
DMA operation register
DMA source address register
DMA destination address register
DMA transfer count register
DMA channel control register
DMA vector number register
DMA transfer end interrupt request to CPU
Interrupt transfer request from on-chip SCIF, SIO, TPU
Burst hint
0, 1
Bus interface
Register
Request
Interrupt
Iteration
Start-up
control
control
control
priority
control
control
VCRDMAn
DMAOR
CHCRn
SARn
DARn
TCRn
DMAC
455