r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 1479

• Manufacturer Part Number: r5s77631ay266bgv
• Description: Renesas 32-bit Risc Microcomputer Superhtm Risc Engine Family Sh-4a Series
• Manufacturer: Renesas Electronics Corporation.

Figure 33.4 Sample Flowchart for Off-Chip Codec Register Write
Write 0 to TSR. CMDDMT.
Write 0 to TSR. CMDAMT.
Write Data to CSDR.
Write Addr to CSDR.
TSR.CMDAMT = 1&
Clear RetryCnt to 0.
Clear LoopCnt to 0.
TSR. CMDDMT = 1
Notes:
Write to codec.
Return
E1: Number required for the target system.
Input: Addr: Address of the codec register to be written to
Data: Data to be written to the codec register
RetryCnt: Software counter for error detection
LoopCnt: Software counter for wait insertion
Yes
(21 < E1 <1000)
No
E1 < LoopCnt 1
Wait for 1 µs
5 < RetryCnt
LoopCnt ++
RetryCnt ++
Error
Yes
Yes
Rev. 1.00 Oct. 01, 2007 Page 1413 of 1956
Necessary setting:
ACR.TX12_ATOMIC = 1
Section 33 Audio Codec Interface (HAC)
No
No
REJ09B0256-0100