HD64F36022 datasheet(235/384 Pages) RENESAS

Part #	HD64F36022

Description	Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series

PDF	384 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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235 / 384 page

Section 13 Serial Communication Interface 3 (SCI3)

Rev. 4.00 Sep. 23, 2005 Page 209 of 354

REJ09B0025-0400

<End>

Yes

Start transmission

Read TDRE flag in SSR

[1]

Set MPBT bit in SSR

Yes

Read TEND flag in SSR

[2]

Yes

[3]

Clear PDR to 0 and set PCR to 1

Clear TE bit in SCR3 to 0

TDRE = 1

All data transmitted?

TEND = 1

Break output?

Write transmit data to TDR

[1]

Read SSR and check that the TDRE

flag is set to 1, set the MPBT bit in

SSR to 0 or 1, then write transmit

data to TDR. When data is written to

TDR, the TDRE flag is automatically

cleared to 0.

[2]

To continue serial transmission, be

sure to read 1 from the TDRE flag to

confirm that writing is possible, then

write data to TDR. When data is

written to TDR, the TDRE flag is

automatically cleared to 0.

[3]

To output a break in serial

transmission, set the port PCR to 1,

clear PDR to 0, then clear the TE bit

in SCR3 to 0.

Figure 13.16 Sample Multiprocessor Serial Transmission Flowchart

HD64F36022 Datasheet(PDF) 235 Page - Renesas Technology Corp

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