E62655RUSB Renesas Electronics America, E62655RUSB Datasheet - Page 248

• Manufacturer Part Number: E62655RUSB
• Description: EMULATOR BASE H8S/2655R W/USB
• Manufacturer: Renesas Electronics America
• Type: Microcontrollerr

Specifications of E62655RUSB

• Contents: E6000 Emulator Unit and 4 Logic Probes
• For Use With/related Products: H8S/2655R
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Section 7 DMA Controller
7.1.2
A block diagram of the DMAC is shown in figure 7.1.
Rev. 5.00 Sep 14, 2006 page 218 of 1060
REJ09B0331-0500
Internal interrupts
External pins
Interrupt signals
Legend:
DMAWER
DMATCR
DMABCR
DMACR
MAR
IOAR
ETCR
TGI0A
TGI1A
TGI2A
TGI3A
TGI4A
TGI5A
TXI0
RXI0
TXI1
RXI1
ADI
DREQ
DREQ
TEND
TEND
DACK
DACK
DEND0A
DEND0B
DEND1A
DEND1B
Block Diagram
: DMA write enable register
: DMA terminal control register
: DMA band control register (for all channels)
: DMA control register
: Memory address register
: I/O address register
: Executive transfer counter register
0
1
0
1
0
1
Data buffer
Control logic
Figure 7.1 Block Diagram of DMAC
DMABCR
DMAWER
DMATCR
DMACR0A
DMACR0B
DMACR1A
DMACR1B
Internal address bus
Internal data bus
Address buffer
Processor
MAR0A
MAR0B
MAR1A
MAR1B
ETCR0A
ETCR0B
ETCR1A
ETCR1B
IOAR0A
IOAR0B
IOAR1A
IOAR1B