R0K561622S000BE Renesas Electronics America, R0K561622S000BE Datasheet - Page 286
R0K561622S000BE
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
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Section 8 Bus Controller (BSC)
• During transfer information read
• During the first data transfer
• During transfer information write back
The DTC releases the bus when the consecutive transfer cycles completed.
(3)
The DMAC sends the internal bus arbiter a request for the bus when an activation request is
generated. When the DMAC accesses an external bus space, the DMAC first takes control of the
bus from the internal bus arbiter and then requests a bus to the external bus arbiter.
After the DMAC takes control of the bus, it may continue the transfer processing cycles or release
the bus at the end of every bus cycle depending on the conditions.
The DMAC continues transfers without releasing the bus in the following case:
• Between the read cycle in the dual-address mode and the write cycle corresponding to the read
If no bus master of a higher priority than the DMAC requests the bus and the IBCCS bit in BCR2
is cleared to 0, the DMAC continues transfers without releasing the bus in the following cases:
• During 1-block transfers in the block transfer mode
• During transfers in the burst mode
In other cases, the DMAC transfers the bus at the end of the bus cycle.
(4)
When the BREQ pin goes low and an external bus release request is issued while the BRLE bit in
BCR1 is set to 1 with the corresponding ICR bit set to 1, a bus request is sent to the bus arbiter.
External bus release can be performed on completion of an external bus cycle.
Rev. 2.00 Sep. 16, 2009 Page 256 of 1036
REJ09B0414-0200
cycle
DMAC
External Bus Release
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