HD64F2239TF20I Renesas Electronics America, HD64F2239TF20I Datasheet - Page 331
HD64F2239TF20I
Manufacturer Part Number
HD64F2239TF20I
Description
MCU 3V 384K I-TEMP 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2200r
Datasheet
1.DF2238RFA6V.pdf
(1048 pages)
Specifications of HD64F2239TF20I
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
72
Program Memory Size
384KB (384K x 8)
Program Memory Type
FLASH
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD64F2239TF20I
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Figure 8.31 shows an example of single address mode transfer activated by the DREQ pin falling
edge.
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 single cycle ends, acceptance
Figure 8.31 Example of DREQ Pin Falling Edge Activated Single Address Mode Transfer
Address bus
[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
[4] [7] When the DREQ pin high level has been sampled, acceptance is resumed after the single
Note: In write data buffer mode, bus breaks from [2] to [7] may be hidden, and not visible.
DMA control
Channel
DREQ
DACK
Acceptance after transfer enabling; the DREQ pin low level is sampled on the rising edge of
and the request is held.
cycle is completed. (As in [1], the DREQ pin low level is sampled on the rising edge of
the request is held.)
φ
Idle
[1]
Request
Bus release
Minimum of
2 cycles
[2]
[3]
Single
Request clear
Transfer source/
DMA single
period
destination
Acceptance resumes
Idle
[4]
Request
Bus release
Minimum of
Rev. 6.00 Mar. 18, 2010 Page 269 of 982
2 cycles
[5]
Section 8 DMA Controller (DMAC)
[6]
Single
DMA single
Request clear
Transfer source/
destination
period
Acceptance resumes
φ
starts.
Idle
REJ09B0054-0600
[7]
Bus release
φ
, and
φ
,
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