R8A77850ADBGV#RD0Z Renesas Electronics America, R8A77850ADBGV#RD0Z Datasheet - Page 1241
R8A77850ADBGV#RD0Z
Manufacturer Part Number
R8A77850ADBGV#RD0Z
Description
IC SUPERH MPU ROMLESS 436-BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7780r
Datasheet
1.R8A77850AADBGV.pdf
(1694 pages)
Specifications of R8A77850ADBGV#RD0Z
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
-40°C ~ 85°C
Package / Case
436-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
Part Number:
R8A77850ADBGV#RD0ZR8A77850ADBGV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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24.4
The multimedia card is an external storage media that can be easily connected or disconnected.
The MMCIF operates in MMC mode.
Insert a card and supply power to it. Then operate the MMCIF by applying the transfer clock after
setting an appropriate transfer clock frequency.
Do not connect or disconnect the card during command sequence execution or in the data busy
state.
24.4.1
MMC mode is an operating mode in which the transfer clock is output from the MMCCLK pin,
command transmission/response receive occurs via the MMCCMD pin, and data is
transmitted/received via the MMCDAT pin. In this mode the next command can be issued while
data is being transmitted/received.
This feature is efficient for multiple block or stream transfer. In this case, the next command is the
CMD12 command, which aborts the current command sequence.
In MMC mode, broadcast commands that simultaneously issue commands to multiple cards are
supported. After information of the inserted cards is recognized by a broadcast command, a
relative address is given to each card. One card is selected by the relative address, other cards are
deselected, and then various commands are issued to the selected card.
Commands in MMC mode are basically classified into three types: broadcast, relative address, and
flash memory operation commands. The card can be operated by issuing these commands
appropriately according to the card state.
Operation
Operations in MMC Mode
Rev.1.00 Jan. 10, 2008 Page 1209 of 1658
24. Multimedia Card Interface (MMCIF)
REJ09B0261-0100
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