HD6412340 HITACHI [Hitachi Semiconductor], HD6412340 Datasheet - Page 207

• Manufacturer Part Number: HD6412340
• Description: H8S/2345 F-ZTAT Hardware Manual
• Manufacturer: HITACHI [Hitachi Semiconductor]

7.3.4
Figure 7.5 shows how the register information should be located in the address space.
Locate the MRA, SAR, MRB, DAR, CRA, and CRB registers, in that order, from the start address
of the register information (contents of the vector address). In the case of chain transfer, register
information should be located in consecutive areas.
Locate the register information in the on-chip RAM (addresses: H'FFF800 to H'FFFBFF).
Figure 7.4 Correspondence between DTC Vector Address and Register Information
DTC vector
address
Register
information
start address
Chain
transfer
Location of Register Information in Address Space
Figure 7.5 Location of Register Information in Address Space
Register information
MRA
MRB
MRA
MRB
start address
0
CRA
CRA
Lower address
1
4 bytes
DAR
SAR
DAR
SAR
2
Chain transfer
CRB
CRB
3
Register information
Register information
Register information
for 2nd transfer in
chain transfer
189