R8A77850ANBGV Renesas Electronics America, R8A77850ANBGV Datasheet - Page 782
R8A77850ANBGV
Manufacturer Part Number
R8A77850ANBGV
Description
IC SUPERH MPU ROMLESS 436-BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7780r
Datasheet
1.R8A77850AADBGV.pdf
(1694 pages)
Specifications of R8A77850ANBGV
Core Processor
SH-4A
Core Size
32-Bit
Speed
600MHz
Connectivity
Audio Codec, MMC, Serial Sound, SCI, SIO, SPI, SSI
Peripherals
DMA, POR, WDT
Number Of I /o
108
Program Memory Type
ROMless
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
1 V ~ 1.2 V
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
436-BGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R8A77850ANBGV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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15. Clock Pulse Generator (CPG)
4. Set H'CF000001 in FRQCR0 to enable execution of the sequence that changes the frequency.
5. The CLKOUTENB pin output changes to low level. After ten cycles of the peripheral clock
6. When the oscillation of PLL circuit 2 is stable, wait for ten cycles of the peripheral clock
7. When the WDT starts counting up and the value of WDTBCNT is equal to the value of
8. When H'00000000 is read from FRQCR0, the sequence that changes the frequency has
Note: * When setting a value except H'0 in the MFC3 to MFC0 bits in FRQCR1 to change the
Rev.1.00 Jan. 10, 2008 Page 750 of 1658
REJ09B0261-0100
PLL circuit 2 stabilized oscillation
CLKOUT
output
CLKOUTENB
output
The sequence that changes the frequency starts.
(Pck), an unstable clock is output to the CLKOUT pin.
(Pck). Then output a high level signal to the CLKOUTENB pin.
WDTBST, the LSI resumes operation.
finished. The internal clock has been changed to the clock with the specified division ratio.
CLKOUT
output
CLKOUTENB
output
DDR clock frequency, switch SDRAM to the self-refreshing state before executing
step (2) above. For details on how to switch to or release the self-refreshing state, see
section 12, DDR2-SDRAM Interface (DBSC2).
Figure 15.2 Beginning of the Change of the Bus Clock Frequency
Figure 15.3 End of the Change of the Bus Clock Frequency
Ten peripheral clock cycles
Ten peripheral clock cycles
Counting-up by the WDT
PLL circuit 2 oscillation starts
Operation restarts
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