R0K561622S000BE Renesas Electronics America, R0K561622S000BE Datasheet - Page 343

• Manufacturer Part Number: R0K561622S000BE
• Description: KIT STARTER FOR H8SX/1622
• Manufacturer: Renesas Electronics America
• Series: Renesas Starter Kits (RSK)r
• Type: MCUr

Specifications of R0K561622S000BE

• Contents: Board, Cables, CD, Debugger, Power Supply
• Silicon Manufacturer: Renesas
• Features: Coding And Debugging, E10A Emulator, RS232 Serial Connection
• Kit Contents: Board
• Silicon Family Name: H8SX/1622F
• Silicon Core Number: R5F61622N50LGV
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: H8SX/1622
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

9.5.9
Figure 9.23 shows an examples of signal timing of a basic bus cycle. In figure 9.23, data is
transferred in words from the 16-bit 2-state access space to the 8-bit 3-state access space. When
the bus mastership is passed from the DMAC to the CPU, data is read from the source address and
it is written to the destination address. The bus is not released between the read and write cycles
by other bus requests. DMAC bus cycles follows the bus controller settings.
Bφ
Address bus
RD
LHWR
LLWR
DMA Basic Bus Cycle
High
CPU cycle
Figure 9.23 Example of Bus Timing of DMA Transfer
Source address
T
1
T
2
T
1
DMAC cycle (one word transfer)
T
2
Destination address
T
3
Rev. 2.00 Sep. 16, 2009 Page 313 of 1036
T
1
Section 9 DMA Controller (DMAC)
T
2
T
3
REJ09B0414-0200
CPU cycle