HD6417712BPV Renesas Electronics America, HD6417712BPV Datasheet - Page 475
HD6417712BPV
Manufacturer Part Number
HD6417712BPV
Description
MPU 1.5/3.3V 0K PB-FREE 256-BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH Ethernetr
Datasheet
1.HD6417712BPV.pdf
(980 pages)
Specifications of HD6417712BPV
Core Processor
SH-3 DSP
Core Size
32-Bit
Speed
200MHz
Connectivity
EBI/EMI, Ethernet, FIFO, SCI, SIO
Peripherals
DMA, POR, WDT
Number Of I /o
24
Program Memory Type
ROMless
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.4 V ~ 1.6 V
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
256-BGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6417712BPV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 475 of 980
- Download datasheet (6Mb)
Section 12 Bus State Controller (BSC)
Self-refresh timing is shown in figure 12.26. Settings must be made so that self-refresh
clearing and data retention are performed correctly, and auto-refreshing is performed at the
correct intervals. When self-refreshing is activated from the state in which auto-refreshing is
set, or when exiting standby mode other than through a power-on reset, auto-refreshing is
restarted if the RFSH bit is set to 1 and the RMODE bit is cleared to 0 when self-refresh mode
is cleared. If the transition from clearing of self-refresh mode to the start of auto-refreshing
takes time, this time should be taken into consideration when setting the initial value of
RTCNT. Making the RTCNT value 1 less than the RTCOR value will enable refreshing to be
started immediately.
After self-refreshing has been set, the self-refresh state continues even if the chip standby state
is entered using the LSI standby function, and is maintained even after recovery from standby
mode by an interrupt.
The self-refresh state is not cleared by a manual reset.
In case of a power-on reset, the bus state controller’s registers are initialized, and therefore the
self-refresh state is cleared.
Rev. 1.00 Dec. 27, 2005 Page 431 of 932
REJ09B0269-0100
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