Renesas SH7709S Manual Do Utilizador

Rev. 5.00, 09/03, page 540 of 760

Initialization

Clear TE and RE bits in SCSCR to 0

Set TFRST and RFRST bits in

SCFCR to 1

1-bit interval elapsed?

Set RTRG1-0, TTRG1-0, and MCE 

in SCFCR

Clear TFRST and RFRST bits to 0

Set TE and RE bits in 

SCSCR to 1,and set RIE, TIE, 

TEIE, and MPIE bits

Set communication format in SCSMR

Yes

No

Set value in SCBRR

Set CKE1 and CKE0 

bits in SCSCR (leaving TE and RE 

bits cleared to 0)

End

(1) 

(2) 

(3) 

(4) 

Wait

Note:  Numbers in parentheses refer to steps in the preceding procedure description.