R8A77850ANBGV Renesas Electronics America, R8A77850ANBGV Datasheet - Page 1242

• Manufacturer Part Number: R8A77850ANBGV
• Description: IC SUPERH MPU ROMLESS 436-BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

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: -

24. Multimedia Card Interface (MMCIF)
(1)
CMD0, CMD1, CMD2, and CMD4 are broadcast commands. These commands and the CMD3
command comprise a sequence assigning relative addresses to individual cards. In this sequence,
the CMD output format is open drain, and the command response is wired-OR. During the
issuance of this command sequence, the transfer clock frequency should be set to a sufficiently
low value.
• All cards are initialized to the idle state by CMD0.
• The operation condition registers (OCR) of all cards are read via wired-OR and cards that
• The card identifications (CID) of all cards in the ready state are read via wired-OR by CMD2.
• A relative address (RCA) is given to the card in the acknowledge state by CMD3.
• By repeating CMD2 and CMD3, RCAs are given to all cards in the ready state to make them
(2)
CMD7, CMD9, CMD10, CMD13, CMD15, CMD39, and CMD55 are relative address commands
that address the card by RCA. The relative address commands are used to read card administration
information and original information, and to change the specific card states.
CMD7 sets one addressed card to the transfer state, and the other cards to the standby state. Only
the card in the transfer state can execute flash-memory operation commands, other than broadcast
or relative-address commands.
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cannot operate are deactivated by CMD1.
The cards that are not deactivated enter the ready state.
Each card compares it's CID and data on the MMCCMD, and if they are different, the card
aborts the CID output. Only one card in which the CID can be entirely output enters the
acknowledge state. When the R2 response is necessary, set CTOCR to H'01.
The card to which the RCA is given enters the standby state.
enter the standby state.
Operation of Broadcast Commands
Operation of Relative Address Commands