R8A77800ANBGAV Renesas Electronics America, R8A77800ANBGAV Datasheet - Page 957

• Manufacturer Part Number: R8A77800ANBGAV
• Description: IC SUPERH MPU ROMLESS 449-BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

Specifications of R8A77800ANBGAV

• Core Processor: SH-4A
• Core Size: 32-Bit
• Speed: 400MHz
• Connectivity: Audio Codec, MMC, Serial Sound, SCI, SIO, SPI, SSI
• Peripherals: DMA, POR, WDT
• Number Of I /o: 75
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.15 V ~ 1.35 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 449-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

• 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 MCCMD and MCDAT pins go to the high impedance state when the MMCIF and the
(DTBUSY_TU)
Input/output pins
CMDSTRT
(DTBUSY)
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 are high because they are
pulled-up internally.
(DBSYI)
(START)
INTSTR0
(CWRE)
MCCMD
(BUSY)
MCCLK
(CMDI)
Figure 24.5 Example of Command Sequence for Commands without Data Transfer
MCDAT
(CRPI)
CSTR
(REQ)
Command transmission period
Command transmission
Command output (48 bits)
started
(No Data Busy State)
Command sequence execution period
Section 24 Multimedia Card Interface (MMCIF)
Rev.1.00 Dec. 13, 2005 Page 905 of 1286
Command response
reception
Response reception
(No busy state)
REJ09B0158-0100
completed