r5s72060w200fpv Renesas Electronics Corporation., r5s72060w200fpv Datasheet - Page 339
r5s72060w200fpv
Manufacturer Part Number
r5s72060w200fpv
Description
32-bit Risc Microcomputer Superhtm Risc Engine Family / Sh7200 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R5S72060W200FPV.pdf
(1180 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R5S72060W200FPV
Manufacturer:
NEC
Quantity:
3 490
Part Number:
R5S72060W200FPV
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
- Current page: 339 of 1180
- Download datasheet (7Mb)
Section 8 Bus State Controller (BSC)
(9)
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
REFOUT pin to request the bus while waiting for refresh execution. For REFOUT pin function
selection, see section 19, Pin Function Controller (PFC). This LSI continues to assert REFOUT
(low level) until the bus is acquired.
On receiving the asserted REFOUT signal, the external device must negate the BREQ signal and
return the bus. If the external bus does not return the bus for a period longer than the specified
refresh interval, refresh cannot be executed and the SDRAM contents may be lost.
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 refresh is
completed.
Rev. 2.00 Dec. 09, 2005 Page 315 of 1152
REJ09B0191-0200
Related parts for r5s72060w200fpv
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Renesas Technology Corp [Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series]
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
RENESAS MCU M16C FAMILY / M16C/Tiny SERIES
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Renesas Starter Kit for RX210
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
EVALBOARD/Renesas StarterKit for RX630
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
EVALBOARD/Renesas Starter Kit+ for RX63N
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
EVALBOARD/Renesas Starter Kit
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
FLASH PROGRAMMER FOR RENESAS MICROCONTROLLERS
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet: