HD64F7051SFJ20V Renesas Electronics America, HD64F7051SFJ20V Datasheet - Page 198
![MCU 5V 256K J-TEMP PB-FREE QFP-1](/photos/28/62/286212/168-bqfp_sml.jpg)
HD64F7051SFJ20V
Manufacturer Part Number
HD64F7051SFJ20V
Description
MCU 5V 256K J-TEMP PB-FREE QFP-1
Manufacturer
Renesas Electronics America
Series
SuperH® SH7050r
Datasheet
1.HD64F7050SFJ20V.pdf
(843 pages)
Specifications of HD64F7051SFJ20V
Core Processor
SH-2
Core Size
32-Bit
Speed
20MHz
Connectivity
EBI/EMI, SCI
Peripherals
DMA, WDT
Number Of I /o
102
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
10K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
168-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD64F7051SFJ20V
Manufacturer:
RENESAS
Quantity:
101
Part Number:
HD64F7051SFJ20V
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
- Current page: 198 of 843
- Download datasheet (5Mb)
Section 9 Direct Memory Access Controller (DMAC)
Burst Mode, Dual Address, and Level Detection: DREQ sampling timing in burst mode with
dual address and level detection is virtually the same as that of cycle steal mode.
For example, DMAC transfer begins (figure 9.19), at the earliest, three cycles after the timing of
the first sampling. The second sampling also begins from the start of the transfer one bus cycle
before the start of the first DMAC transfer. In burst mode, as long as transfer requests are issued,
DMAC transfer continues. Therefore, the “transfer one bus cycle before the start of the DMAC
transfer” may be a DMAC transfer.
In burst mode, the DACK output period is thesame as that of cycle steal mode. Figure 9.20 shows
the normal operation of this burst mode.
Rev. 5.00 Jan 06, 2006 page 176 of 818
REJ09B0273-0500
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