R0K572115S000BE Renesas Electronics America, R0K572115S000BE Datasheet - Page 670
R0K572115S000BE
Manufacturer Part Number
R0K572115S000BE
Description
KIT STARTER FOR SH7211
Manufacturer
Renesas Electronics America
Series
Renesas Starter Kits (RSK)r
Type
Microcontrollerr
Specifications of R0K572115S000BE
Contents
CPU Board, LCD Display Module, E8 Emulator, Cable, QuickStart Guide and CD-ROM
For Use With/related Products
SH7211
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
- Current page: 670 of 1198
- Download datasheet (7Mb)
13.4
13.4.1
The CMT has channels and each of them to which a different vector address is allocated has a
compare match interrupt. When both the interrupt request flag (CMF) and the interrupt enable bit
(CMIE) are set to 1, the corresponding interrupt request is output. When the interrupt is used to
activate a CPU interrupt, the priority of channels can be changed by the interrupt controller
settings. For details, see section 6, Interrupt Controller (INTC).
Clear the CMF bit to 0 by the user exception handling routine. If this operation is not carried out,
another interrupt will be generated. The direct memory access controller (DMAC) can be set to be
activated when a compare match interrupt is requested. In this case, an interrupt is not issued to
the CPU. If the setting to activate the DMAC has not been made, an interrupt request is sent to the
CPU. The CMF bit is automatically cleared to 0 when data is transferred by the DMAC.
13.4.2
When CMCOR and CMCNT match, a compare match signal is generated at the last state in which
the values match (the timing when the CMCNT value is updated to H'0000) and the CMF bit in
CMCSR is set to 1. That is, after a match between CMCOR and CMCNT, the compare match
signal is not generated until the next CMCNT counter clock input. Figure 13.4 shows the timing of
CMF bit setting.
Rev. 3.00 Mar. 04, 2009 Page 644 of 1168
REJ09B0344-0300
Interrupts
Interrupt Sources and DMA Transfer Requests
Timing of Compare Match Flag Setting
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