DF2376VFQ33V Renesas Electronics America, DF2376VFQ33V Datasheet - Page 404
![IC H8S/2376 MCU FLASH 144LQFP](/photos/28/61/286116/144-lqfp__plqp0144kc-a_sml.jpg)
DF2376VFQ33V
Manufacturer Part Number
DF2376VFQ33V
Description
IC H8S/2376 MCU FLASH 144LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Specifications of DF2376VFQ33V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
33MHz
Connectivity
I²C, IrDA, SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
97
Program Memory Size
384KB (384K x 8)
Program Memory Type
FLASH
Ram Size
30K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 16x10b; D/A 6x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
144-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2376VFQ33V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 7 DMA Controller (DMAC)
DREQ pin sampling is performed every cycle, with the rising edge of the next φ cycle after the
end of the DMABCR write cycle for setting the transfer enabled state as the starting point.
When the DREQ pin low level is sampled while acceptance by means of the DREQ pin is
possible, the request is held in the DMAC. Then, when activation is initiated in the DMAC, the
request is cleared, and DREQ pin high level sampling for edge detection is started. If DREQ pin
high level sampling has been completed by the time the DMA write cycle ends, acceptance
resumes after the end of the write cycle, DREQ pin low level sampling is performed again, and
this operation is repeated until the transfer ends.
Figure 7.23 shows an example of block transfer mode transfer activated by the DREQ pin falling
edge.
Rev.7.00 Mar. 18, 2009 page 336 of 1136
REJ09B0109-0700
[1]
[2] [5] The request is cleared at the next bus break, and activation is started in the DMAC.
[3] [6] Start of DMA cycle; DREQ pin high level sampling on the rising edge of φ starts.
[4] [7] When the DREQ pin high level has been sampled, acceptance is resumed after the write cycle
Note: In write data buffer mode, bus breaks from [2] to [7] may be hidden, and not visible.
φ
DREQ
Address
bus
DMA
control
Channel
Figure 7.22 Example of DREQ Pin Falling Edge Activated Normal Mode Transfer
Acceptance after transfer enabling; the DREQ pin low level is sampled on the rising edge of φ,
and the request is held.
is completed.
(As in [1], the DREQ pin low level is sampled on the rising edge of φ, and the request is held.)
Idle
[1]
Request
Bus release
of 2 cycles
Minimum
[2]
Read
[3]
Transfer source
Request clear period
DMA
read
Write
Transfer destination
Acceptance resumes
DMA
write
Idle
[4]
Request
of 2 cycles
Minimum
release
Bus
[5]
Read
[6]
Transfer source
Request clear period
DMA
read
Write
Transfer destination
Acceptance resumes
DMA
write
Idle
[7]
release
Bus
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