D13002X16V Renesas Electronics America, D13002X16V Datasheet - Page 253
D13002X16V
Manufacturer Part Number
D13002X16V
Description
MCU 3/5V 0K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Datasheet
1.D13002F16V.pdf
(702 pages)
Specifications of D13002X16V
Core Processor
H8/300H
Core Size
16-Bit
Speed
16MHz
Connectivity
SCI
Peripherals
DMA, PWM, WDT
Number Of I /o
38
Program Memory Type
ROMless
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
D13002X16V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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When an ITU interrupt activates the DMAC, make sure the next interrupt does not occur before
the DMA transfer ends. If one ITU interrupt activates two or more channels, make sure the next
interrupt does not occur before the DMA transfers end on all the activated channels. If the next
interrupt occurs before a transfer ends, the channel or channels for which that interrupt was
selected may fail to accept further activation requests.
8.6.6 NMI Interrupts and Block Transfer Mode
If an NMI interrupt occurs in block transfer mode, the DMAC operates as follows.
•
•
•
•
When the NMI interrupt occurs, the DMAC finishes transferring the current byte or word,
then clears the DTME bit to 0 and halts. The halt may occur in the middle of a block.
It is possible to find whether a transfer was halted in the middle of a block by checking the
block size counter. If the block size counter does not have its initial value, the transfer was
halted in the middle of a block.
If the transfer is halted in the middle of a block, the activating interrupt flag is cleared to 0.
The activation request is not held pending.
While the DTE bit is set to 1 and the DTME bit is cleared to 0, the DMAC is halted and does
not accept activating interrupt requests. If an activating interrupt occurs in this state, the
DMAC does not operate and does not hold the transfer request pending internally. Neither is a
CPU interrupt requested.
For this reason, before setting the DTME bit to 1, first clear the enable bit of the activating
interrupt to 0. Then, after setting the DTME bit to 1, set the interrupt enable bit to 1 again.
See section 8.6.5, Note on Activating DMAC by Internal Interrupts.
When the DTME bit is set to 1, the DMAC waits for the next transfer request. If it was halted
in the middle of a block transfer, the rest of the block is transferred when the next transfer
request occurs. Otherwise, the next block is transferred when the next transfer request occurs.
237
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