R0K561622S000BE Renesas Electronics America, R0K561622S000BE Datasheet - Page 405
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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10.9.9
When overwriting of the DTC-transfer enable register (DTCER) and the generation of an interrupt
that is a source for DTC activation are in competition, activation of the DTC and interrupt
exception processing by the CPU will both proceed at the same time. Depending on the conditions
at this time, doubling of interrupts may occur. If there is a possibility of competition between
overwriting of DTCER and generation of an interrupt that is a source for DTC activation, proceed
with overwriting of DTCER according to the relevant procedure given below.
(corresponding bit = 1 in the CCR).
Restore the original value of the
Back-up the value of the CCR.
Set the interrupt-mask bit to 1
Points for Caution when Overwriting DTCER
Dummy-read the DTCER.
interrupt-control mode 0
Overwrite the DTCER.
interrupt-mask bit.
In the case of
Figure 10.17 Example of Procedures for Overwriting DTCER
END
Set the interrupt-request masking level to 7
Restore the original value of the
interrupt-request masking level.
Back-up the value of the EXR.
(in the EXR, I2, I1, I0 = B'111).
Dummy-read the DTCER.
interrupt-control mode 2
Overwrite the DTCER.
In the case of
Rev. 2.00 Sep. 16, 2009 Page 375 of 1036
Section 10 Data Transfer Controller (DTC)
END
REJ09B0414-0200
Interrupts are
masked
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