R8A77850ANBGV Renesas Electronics America, R8A77850ANBGV Datasheet - Page 1245
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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• The command response is received from the card.
• The end of the command sequence is detected by poling the BUSY flag in CSTR or by the
• Check whether the state is data busy through the DTBUSY bit in CSTR. If data busy is
• Write the CMDOFF bit to 1, if a CRC error (CRCERI) or a command timeout error (CTERI)
• The MMCCMD and MMCDAT pins go to the high impedance state when the MMCIF and the
(DTBUSY_TU)
Input/output pins
(CMDSTART)
CMDSTRT
(DTBUSY)
MMCCMD
If the card returns no command response, the command response is detected by the command
timeout error (CTERI).
command response receive end interrupt (CRPI).
detected, the end of the data busy state is then detected through the data busy end interrupt
(DBSYI).
occurs.
MMC card do not drive the bus and the input level of these pins is high because they are
pulled-up internally.
MMCCLK
(DBSYI)
MMCDAT
INTSTR0
(CWRE)
(BUSY)
(CMDI)
Figure 24.5 Example of Command Sequence for Commands without Data Transfer
(CRPI)
CSTR
(REQ)
Command transmission period
Command transmission
Command output (48 bits)
started
(No Data Busy State)
Command sequence execution period
Rev.1.00 Jan. 10, 2008 Page 1213 of 1658
Command response
24. Multimedia Card Interface (MMCIF)
reception
Response reception
REJ09B0261-0100
(No busy state)
completed
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