R8A77850ADBGV Renesas Electronics America, R8A77850ADBGV Datasheet - Page 1324

• Manufacturer Part Number: R8A77850ADBGV
• Description: IC SUPERH MPU ROMLESS 436-BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

Specifications of R8A77850ADBGV

• 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: -40°C ~ 85°C
• Package / Case: 436-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

25. Audio Codec Interface (HAC)
Rev.1.00 Jan. 10, 2008 Page 1292 of 1658
REJ09B0261-0100
Send_read_request (RegN)
Send_read_request (RegN)
Read_codec_aux (RegN)
Get_codec_data (RegN)
Get_codec_data (RegN)
Figure 25.5 Sample Flowchart for Off-Chip Codec Register Read (1)
RegN = Last_Reg?
Read_codec_aux
Data 2 return
Read codec
Data return
Error
Error
Error
Error
Error
: Data acquisition
: Data 1 acquisition
: Data 2 acquisition
No
No
No
No
No
No
Input: RegN (address of the codec register to be read)
Input: RegN (address of the codec register to be read)
Read_codec_aux (RegV)
Yes
Yes
Yes
Yes
Yes
Yes
Error
Error
No
RegV = H'7C
(Vender ID1)
Error
In continuous reading of registers in some off-chip codec
devices, the data in the register previously read may be read
again. In such case, take the steps in this flowchart.
Yes
Dummy processing
(Discard the first data)
Error
Dummy read
Last_Reg: Address of the register
read last time