3069RF-ZTAT Datasheet, PDF (253/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

Start
(DTE = DTME = 1)
No
Transfer requested?
Yes
Get bus
Start
(DTE = DTME = 1)
No
Transfer requested?
Yes
Get bus
Read from MARA address
MARA = MARA + 1
Write to MARB address
MARB = MARB + 1
ETCRAH = ETCRAH –1
No
ETCRAH = H'00
Yes
Release bus
ETCRAH = ETCRAL
MARB = MARB –ETCRAL
ETCRB = ETCRB –1
No
ETCRB = H'0000
Yes
Clear DTE to 0 and end transfer
Read from MARA address
MARA = MARA + 1
Write to MARB address
ETCRAH = ETCRAH –1
No
ETCRAH = H'00
Yes
Release bus
ETCRAH = ETCRAL
ETCRB = ETCRB –1
No
ETCRB = H'0000
Yes
Clear DTE to 0 and end transfer
a. DTSZ = TMS = 0
SAID = DAID = 0
SAIDE = DAIDE = 1
b. DTSZ = TMS = 0
SAID = 0
SAIDE = 1
DAIDE = 0
Figure 7.11 Block Transfer Mode Flowcharts (Examples)
Rev. 5.0, 09/04, page 231 of 978