r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 422

• Manufacturer Part Number: r4f2426
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 8 EXDMA Controller (EXDMAC)
Figure 8.1 shows a block diagram of the EXDMAC.
Rev. 1.00 Sep. 19, 2008 Page 394 of 1270
REJ09B0466-0100
External pins
Interrupt request
signals to CPU
for individual
channels
Legend:
EDSAR:
EDDAR:
EDTCR:
EDMDR:
EDACR:
EDREQ
EDRAK
EDACK
ETEND
EXDMA source address register
EXDMA destination address register
EXDMA transfer count register
EXDMA mode control register
EXDMA address control register
Figure 8.1 Block Diagram of EXDMAC
Data buffer
Control logic
EDMDR
EDACR
Internal data bus
Bus controller
Address buffer
Processor
EDDAR
EDSAR
EDTCR