HD64F2676VFC33 Renesas Electronics America, HD64F2676VFC33 Datasheet - Page 411
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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Caution is required when setting the repeat area overflow interrupt of the repeat area function in
block transfer mode. See section 8.4.6, Repeat Area Function, for details.
Block transfer is aborted if an NMI interrupt is generated. See section 8.4.12, Ending DMA
Transfer, for details.
Figure 8.8 shows an example of DMA transfer timing in block transfer mode.
8.4.6
The EXDMAC has a function for designating a repeat area for source addresses and/or destination
addresses. When a repeat area is designated, the address register values repeat within the range
specified as the repeat area. Normally, when a ring buffer is involved in a transfer, an operation is
required to restore the address register value to the buffer start address each time the address
register value is the last address in the buffer (i.e. when ring buffer address overflow occurs), but if
the repeat area function is used, the operation that restores the address register value to the buffer
start address is performed automatically within the EXDMAC.
The repeat area function can be set independently for the source address register and the
destination address register.
Transfer conditions:
• Single address mode
• BGUP = 0
• Block size (EDTCR[23:16]) = 3
EDREQ
EDRAK
Bus cycle
ETEND
Repeat Area Function
CPU
Figure 8.8 Example of Timing in Block Transfer Mode
CPU
CPU
EXDMAC
One-block transfer cycle
CPU cycle not generated
EXDMAC
Rev. 3.00 Mar 17, 2006 page 359 of 926
EXDMAC
Section 8 EXDMA Controller
REJ09B0283-0300
CPU
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