R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 1374

• Manufacturer Part Number: R5S77631Y266BGV
• Description: IC SUPERH MPU ROMLESS 499BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

Specifications of R5S77631Y266BGV

• Core Processor: SH-4A
• Core Size: 32-Bit
• Speed: 266MHz
• Connectivity: Audio Codec, I²C, MMC, SCI, SIM, SIO, SSI, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 107
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.15 V ~ 1.35 V
• Data Converters: A/D 4x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 499-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

Section 31 Multimedia Card Interface (MMCIF)
31.3.7
CMDSTRT is an 8-bit readable/writable register that triggers the start of command transmission or
Stop Tran transmission, representing the start of a command sequence. The following operations
should be completed before the command sequence starts.
Command transmission:
• Analysis of prior command response, clearing the command response register write if
• Analysis/transfer of receive data of prior command if necessary
• Preparation of transmit data of the next command if necessary
• Setting of CMDTYR, RSPTYR, TBCR, and TBNCR
• Setting of CMDR0 to CMDR4
Stop Tran transmission:
• Setting of CMDTYR and RSPTYR
Rev. 2.00 May 22, 2009 Page 1304 of 1982
REJ09B0256-0200
necessary
The CMDR0 to CMDR4, CMDTYR, RSPTYR, TBCR, and TBNCR registers should not be
changed until command transmission has ended (during the time the CWRE flag in CSTR is
set to 1).
The CMDTYR and RSPTYR registers should not be changed until command transmission has
ended (during the time the CWRE flag in CSTR is set to 1).
Command Start Register (CMDSTRT)