HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 235

• Manufacturer Part Number: HD6433044
• Description: (HD64 Series) Hitachi Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

a. DTSZ = TMS = 0
Clear DTE to 0 and end transfer
MARB = MARB – ETCRAL
Read from MARA address
SAID = DAID = 0
SAIDE = DAIDE = 1
ETCRAH = ETCRAH – 1
Write to MARB address
ETCRB = ETCRB – 1
ETCRAH = ETCRAL
Transfer requested?
MARA = MARA + 1
MARB = MARB + 1
(DTE = DTME = 1)
ETCRB = H'0000
ETCRAH = H'00
Release bus
Get bus
Start
Figure 8-11 Block Transfer Mode Flowcharts (Examples)
Yes
Yes
Yes
No
No
No
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b. DTSZ = TMS = 0
Clear DTE to 0 and end transfer
Read from MARA address
SAID = 0
SAIDE = 1
DAIDE = 0
ETCRAH = ETCRAH – 1
Write to MARB address
ETCRB = ETCRB – 1
ETCRAH = ETCRAL
Transfer requested?
MARA = MARA + 1
(DTE = DTME = 1)
ETCRB = H'0000
ETCRAH = H'00
Release bus
Get bus
Start
Yes
Yes
Yes
No
No
No