DF2210CUNP24V Renesas Electronics America, DF2210CUNP24V Datasheet - Page 265
![MCU 16BIT FLASH 3V 32K 64-QFN](/photos/28/61/286186/64-vfqfn_sml.jpg)
DF2210CUNP24V
Manufacturer Part Number
DF2210CUNP24V
Description
MCU 16BIT FLASH 3V 32K 64-QFN
Manufacturer
Renesas Electronics America
Series
H8® H8S/2200r
Datasheet
1.DF2218UTF24V.pdf
(758 pages)
Specifications of DF2210CUNP24V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
24MHz
Connectivity
SCI, SmartCard, USB
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
37
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 6x10b
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
64-QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Part Number:
DF2210CUNP24V
Manufacturer:
Renesas Electronics America
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7.6.4
At the start of activation source acceptance, a low level is detected in both DREQ signal falling
edge sensing and low level sensing. Similarly, in the case of an internal interrupt, the interrupt
request is detected. Therefore, a request is accepted from an internal interrupt or DREQ pin low
level that occurs before execution of the DMABCRL write to enable transfer.
When the DMAC is activated, take any necessary steps to prevent an internal interrupt or DREQ
signal low level remaining from the end of the previous transfer, etc.
7.6.5
When the DTE bit is cleared to 0 by the end of transfer or an abort, the selected internal interrupt
request will be sent to the CPU even if DTA is set to 1.
Also, if internal DMAC activation has already been initiated when operation is aborted, the
transfer is executed but flag clearing is not performed for the selected internal interrupt even if
DTA is set to 1.
An internal interrupt request following the end of transfer or an abort should be handled by the
CPU as necessary.
7.6.6
To reactivate a number of channels when multiple channels are enabled, use exclusive handling of
transfer end interrupts, and perform DMABCR control bit operations exclusively. Note, in
particular, that in cases where multiple interrupts are generated between reading and writing of
DMABCR, and a DMABCR operation is performed during new interrupt handling, the DMABCR
write data in the original interrupt handling routine will be incorrect, and the write may invalidate
the results of the operations by the multiple interrupts. Ensure that overlapping DMABCR
operations are not performed by multiple interrupts, and that there is no separation between read
and write operations by the use of a bit-manipulation instruction. Also, when the DTE and DTME
bits are cleared by the DMAC or are written with 0, they must first be read while cleared to 0
before the CPU can write a 1 to them.
Activation Source Acceptance
Internal Interrupt after End of Transfer
Channel Re-Setting
Rev.7.00 Dec. 24, 2008 Page 209 of 698
REJ09B0074-0700
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