r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 1482

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

Section 33 Audio Codec Interface (HAC)
Rev. 1.00 Oct. 01, 2007 Page 1416 of 1956
REJ09B0256-0100
Figure 33.7 Sample Flowchart for Off-Chip Codec Register Read (3)
Notes: E3 and E4: Number required for the target system
Write 0 to TSR. CMDAMT.
Write 0 to RSR.STDRY
Write 0 to RSR.STARY
Clear LoopCnt4 to 0.
WaitLoop_CMDAMT
Clear LoopCnt3 to 0.
RSR.STARY = 1 &
TSR.CMDAMT = 1
RSR.STDRY = 1
WaitLoop_RSR
LoopCnt3: Software counter for wait insertion
LoopCnt4: Software counter for wait insertion
Return
Return
Yes
Yes
(21 < E3, 21 < E4 < 1000)
No
No
E3 < LoopCnt 3
E4 < LoopCnt 4
LoopCnt4 ++
LoopCnt3 ++
Wait for 1µs
Wait for 1µs
Error
Error
Yes
Yes
No
No