HD64F2676VFC33 Renesas Electronics America, HD64F2676VFC33 Datasheet - Page 373
HD64F2676VFC33
Manufacturer Part Number
HD64F2676VFC33
Description
IC H8S MCU FLASH 256K 144-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2600r
Specifications of HD64F2676VFC33
Core Processor
H8S/2600
Core Size
16-Bit
Speed
33MHz
Connectivity
IrDA, SCI
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
103
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 12x10b; D/A 4x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
144-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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Figure 7.29 shows a transfer example in which TEND output is enabled and word-size single
address mode transfer (write) is performed from an external device to external 8-bit, 2-state access
space.
A byte or word transfer is performed for a single transfer request, and after the transfer, the bus is
released. While the bus is released, one or more bus cycles are executed by the CPU or DTC.
In the transfer end cycle (the cycle in which the transfer counter reaches 0), a one-state DMA dead
cycle is inserted after the DMA write cycle.
DREQ
DREQ Pin Falling Edge Activation Timing: Set the DTA bit in DMABCRH to 1 for the channel
DREQ
DREQ
for which the DREQ pin is selected.
Figure 7.30 shows an example of single address mode transfer activated by the DREQ pin falling
edge.
Address bus
DACK
TEND
HWR
LWR
Figure 7.29 Example of Single Address Mode Transfer (Word Write)
release
Bus
DMA write
release
Bus
DMA write
Rev. 3.00 Mar 17, 2006 page 321 of 926
release
Bus
Section 7 DMA Controller (DMAC)
Last transfer
DMA write
cycle
REJ09B0283-0300
DMA
dead
release
Bus
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