R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 1063

• 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: -

23.5.5
This LSI supports an RMII interface. The RMII signals are generated by converting the MII
signals in the MII-RMII conversion circuit.
(1)
REF50CK (50 MHz) from the RMII interface is divided and ET_TX-CLK/ET_RX-CLK (25 MHz
or 2.5 MHz) is output.
Figure 23.36 Independent Bus Release Flowchart (IDLE in Write in Figure 23.33)
Clock
MII-RMII Interface Conversion
(1)
(2)
(2)
(1)
Write to PHY interface
register
ET_MMD = 0
ET_MDC = 1
Read from PHY
interface register
ET_MMD = 0
ET_MDC = 1
ET_MDI is read data
Write to PHY interface
register
ET_MMD = 0
ET_MDC = 0
Write to PHY interface
register
ET_MMD = 0
ET_MDC = 0
Figure 23.35 1-Bit Data Read Flowchart
ET_MDC
ET_MDI
ET_MDC
ET_MDO
Section 23 Gigabit Ethernet Controller (GETHER)
1-bit data read timing
relatinship
Independent bus release
timing relationship
(1)
Rev. 2.00 May 22, 2009 Page 993 of 1982
(2)
(3)
(1)
REJ09B0256-0200