DF70845AD80FPV Renesas Electronics America, DF70845AD80FPV Datasheet - Page 392
DF70845AD80FPV
Manufacturer Part Number
DF70845AD80FPV
Description
IC SUPERH MCU FLASH 112LQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7080r
Datasheet
1.DF70844AD80FPV.pdf
(1644 pages)
Specifications of DF70845AD80FPV
Core Size
32-Bit
Program Memory Size
512KB (512K x 8)
Core Processor
SH-2
Speed
80MHz
Connectivity
EBI/EMI, FIFO, I²C, SCI, SSU
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
76
Program Memory Type
FLASH
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
112-LQFP
No. Of I/o's
76
Ram Memory Size
32KB
Cpu Speed
80MHz
Digital Ic Case Style
LQFP
Supply Voltage Range
3V To 3.6V, 4.5V To 5.5V
Embedded Interface Type
I2C, SCI
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
R0K570865S001BE - KIT STARTER FOR SH7086R0K570865S000BE - KIT STARTER FOR SH7086HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF70845AD80FPV
Manufacturer:
TAIYO
Quantity:
40 000
Company:
Part Number:
DF70845AD80FPV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 392 of 1644
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Section 9 Bus State Controller (BSC)
Relationship between Refresh Requests and Bus Cycles: If a refresh request occurs during bus
cycle execution, the refresh cycle must wait for the bus cycle to be completed. If a refresh request
occurs while the bus is released by the bus arbitration function, the refresh will not be executed
until the bus mastership is acquired. This LSI has the IRQOUT pin to request the bus while
waiting for refresh execution. This LSI continues to assert IRQOUT (low level) until the bus is
acquired.
If a new refresh request occurs while waiting for the previous refresh request, the previous refresh
request is deleted. To refresh correctly, a bus cycle longer than the refresh interval or the bus
mastership occupation must be prevented from occurring.
If a bus mastership is requested during self-refresh, the bus will not be released until the self-
refresh is cleared.
Power-On Sequence: In order to use SDRAM, mode setting must first be made for SDRAM after
powering on. To perform SDRAM initialization correctly, the bus state controller registers must
first be set, followed by a write to the SDRAM mode register. In SDRAM mode register setting,
the address signal value at that time is latched by a combination of the CSn, RASU, RASL,
CASU, CASL, and RDWR signals. If the value to be set is X, the bus state controller provides for
value X to be written to the SDRAM mode register by performing a word-write to address
H'FFF84000 + X for area 2 SDRAM, and to address H'FFF85000 + X for area 3 SDRAM. In this
operation, the write data is ignored. To set burst read/single write (burst length 1), burst read/burst
write (burst length 1), CAS latency 2 and 3, wrap type = sequential, and burst length 1 supported
by the LSI, arbitrary data is written in a word-size access to the addresses shown in table 9.27. In
this time, 0 is output at the external address pins of A12 and later.
Rev. 3.00 May 17, 2007 Page 334 of 1582
REJ09B0181-0300
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