H8SSLASH2214 datasheet(571/936 Pages) RENESAS

Il numero della parte	H8S/2214

Spiegazioni elettronici	16-Bit Single-Chip Microcomputer H8S Family/H8S/2200 Series

PDF	936 Pages

Scroll/Zoom	100%

Produttore elettronici	RENESAS [Renesas Technology Corp]

Homepage	http://www.renesas.com

Logo

571 / 936 page

Section 12 Serial Communication Interface (SCI)

Rev.4.00 Sep. 18, 2008 Page 511 of 872

REJ09B0189-0400

Wait

Note: In simultaneous transmit and receive operations, the TE and RE bits should both be cleared

to 0 or set to 1 simultaneously.

Start initialization

Set data transfer format in

SMR and SCMR

Yes

Set value in BRR

Clear TE and RE bits in SCR to 0

[2]

[3]

Set TE and RE bits in SCR to 1, and

set RIE, TIE, TEIE, and MPIE bits

[4]

1-bit interval elapsed?

[1]

[1] Set the clock selection in SCR. Be sure

to clear bits RIE, TIE, TEIE, and MPIE,

TE and RE, to 0.

[2] Set the data transfer format in SMR

and SCMR.

[3] Write a value corresponding to the bit

rate to BRR. Not necessary if an

external clock is used.

[4] Wait at least one bit interval, then set

the TE bit or RE bit in SCR to 1.

Also set the RIE, TIE, TEIE, and MPIE

bits.

Setting the TE and RE bits enables the

TxD and RxD pins to be used.

Set CKE1 and CKE0 bits in SCR

(TE, RE bits 0)

Figure 12.20 Sample SCI Initialization Flowchart

H8S/2214 Scheda tecnica(PDF) 571 Page - Renesas Technology Corp