Location Of Register Information In Address Space - Renesas H8S Series Hardware Manual

DTC vector
address
Figure 8-4 Correspondence between DTC Vector Address and Register Information
8.3.4

Location of Register Information in Address Space

Figure 8-5 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).
Register
information
start address
Chain
transfer
Register information
start address
Lower address
0
MRA
MRB
CRA
MRA
MRB
CRA
Figure 8-5 Location of Register Information in Address Space
Chain transfer
1 2 3
SAR
DAR
CRB
SAR
DAR
CRB
4 bytes
Register information
Register information
Register information
for 2nd transfer in
chain transfer
Rev.6.00 Oct.28.2004 page 255 of 1016
REJ09B0138-0600H