HD64F2676VFC33 Renesas Electronics America, HD64F2676VFC33 Datasheet - Page 436
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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Section 8 EXDMA Controller
External Request/Cycle Steal Mode/Normal Transfer Mode: In external request mode, an
EXDMA transfer cycle is started a minimum of three cycles after a transfer request is accepted.
The next transfer request is accepted after the end of a one-transfer-unit EXDMA cycle. For
external bus space CPU cycles, at least two bus cycles are generated before the next EXDMA
cycle.
If a transfer request is generated for another channel, an EXDMA cycle for the other channel is
generated before the next EXDMA cycle.
The EDREQ pin sensing timing is different for low level sensing and falling edge sensing. The
same applies to transfer request acceptance and transfer start timing.
Figures 8.35 to 8.38 show operation timing examples for various conditions.
Rev. 3.00 Mar 17, 2006 page 384 of 926
REJ09B0283-0300
EDREQ
EDRAK
Bus cycle
ETEND
EDA bit
pin
Figure 8.35 External Request/Cycle Steal Mode/Normal Transfer Mode
1
Bus release
(No Contention/Dual Address Mode/Low Level Sensing)
EXDMA
read
EXDMA
write
Bus release
3 cycles
EXDMA
Last transfer cycle
read
EXDMA
write
0
Bus release
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