D6417729RHF200BV Renesas Electronics America, D6417729RHF200BV Datasheet - Page 392
![IC SUPER H MPU ROMLESS 208QFP](/photos/12/31/123145/d6417729rhf200bv_sml.jpg)
D6417729RHF200BV
Manufacturer Part Number
D6417729RHF200BV
Description
IC SUPER H MPU ROMLESS 208QFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7700r
Datasheet
1.D6417729RF133BV.pdf
(857 pages)
Specifications of D6417729RHF200BV
Core Processor
SH-3 DSP
Core Size
32-Bit
Speed
200MHz
Connectivity
EBI/EMI, FIFO, IrDA, SCI, SmartCard
Peripherals
DMA, POR, WDT
Number Of I /o
96
Program Memory Type
ROMless
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
1.85 V ~ 2.15 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
208-QFP Exposed Pad, 208-eQFP, 208-HQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
D6417729RHF200BV
Manufacturer:
EVERLIGHT
Quantity:
1 000
Company:
Part Number:
D6417729RHF200BV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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RAS3U, RAS3L
Rev. 5.0, 09/03, page 344 of 806
CASU, CASL
Relationship between Refresh Requests and Bus Cycle Requests
If a refresh request is generated during execution of a bus cycle, execution of the refresh is
deferred until the bus cycle is completed. If a refresh request occurs when the bus has been
released by the bus arbiter, refresh execution is deferred until the bus is acquired. If a match
between RTCNT and RTCOR occurs while a refresh is waiting to be executed, so that a new
refresh request is generated, the previous refresh request is eliminated. In order for refreshing
to be performed normally, care must be taken to ensure that no bus cycle or bus mastership
occurs that is longer than the refresh interval. When a refresh request is generated, the
IRQOUT pin is asserted (driven low). Therefore, normal refreshing can be performed by
having the IRQOUT pin monitored by a bus master other than the SH7729R requesting the
bus, or the bus arbiter, and returning the bus to the SH7729R. When refreshing is started, and
if no other interrupt request has been generated, the IRQOUT pin is negated (driven high).
RD/WR
CKIO
CKE
CSn
Figure 11.27 Synchronous DRAM Self-Refresh Timing
Tp
TRs1
(TRs2)
(TRs2)
TRs3
(Tpc)
(Tpc)
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