HD64F2239FA16 Renesas Electronics America, HD64F2239FA16 Datasheet - Page 338
HD64F2239FA16
Manufacturer Part Number
HD64F2239FA16
Description
IC H8S MCU FLASH 384K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2200r
Specifications of HD64F2239FA16
Core Processor
H8S/2000
Core Size
16-Bit
Speed
16MHz
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
-20°C ~ 75°C
Package / Case
100-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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Quantity
Price
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Part Number:
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Manufacturer:
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Quantity:
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Part Number:
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Manufacturer:
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Section 8 DMA Controller (DMAC)
8.7
8.7.1
Except for forced termination of the DMAC, the operating (including transfer waiting state)
channel setting should not be changed. The operating channel setting should only be changed
when transfer is disabled. Also, DMAC registers should not be written to in a DMA transfer.
DMAC register reads during operation (including the transfer waiting state) are described below.
• DMAC control starts one cycle before the bus cycle, with output of the internal address.
Rev. 6.00 Mar. 18, 2010 Page 276 of 982
REJ09B0054-0600
DMA Internal
address
DMA register
operation
DMA control
Consequently, MAR is updated in the bus cycle before DMA transfer. Figure 8.38 shows an
example of the update timing for DMAC registers in dual address transfer mode.
[1]
[2]
[2'] Transfer destination address register MAR operation (incremented/decremented/fixed)
[3]
Note: In single address transfer mode, the update timing is the same as [1].
φ
Transfer source address register MAR operation (incremented/decremented/fixed)
Transfer counter ETCR operation (decremented)
Block size counter ETCR operation (decremented in block transfer mode)
Transfer destination address register MAR operation (incremented/decremented/fixed)
Block transfer counter ETCR operation (decremented, in last transfer cycle of
a block in block transfer mode)
Transfer address register MAR restore operation (in block or repeat transfer mode)
Transfer counter ETCR restore (in repeat transfer mode)
Block size counter ETCR restore (in block transfer mode)
The MAR operation is post-incrementing/decrementing of the DMA internal address value.
Usage Notes
DMAC Register Access during Operation
Idle
[1]
Transfer
source
Read
Figure 8.38 DMAC Register Update Timing
[2]
DMA read
destination
DMA transfer cycle
Transfer
Write
DMA write
Idle
[1]
Transfer
source
Read
[2']
DMA read
DMA last transfer cycle
destination
Transfer
Write
DMA write
[3]
Dead
DMA
dead
Idle
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