Section 7 Data Transfer Controller (DTC)
Rev.2.00 Jun. 28, 2007 Page 228 of 666
REJ09B0311-0200
7.4
Location of Transfer Information and DTC Vector Table
Locate the transfer information in the data area. The start address of transfer information should be
located at the address that is a multiple of four (4n). Otherwise, the lower two bits are ignored
during access ([1:0] = B'00.) Transfer information can be located in either short address mode
(three longwords) or full address mode (four longwords). The DTCMD bit in SYSCR specifies
either short address mode (DTCMD = 1) or full address mode (DTCMD = 0). For details, see
section 3.2.2, System Control Register (SYSCR). Transfer information located in the data area is
shown in figure 7.2.
The DTC reads the start address of transfer information from the vector table according to the
activation source, and then reads the transfer information from the start address. Figure 7.3 shows
correspondences between the DTC vector address and transfer information.
Start
address
4 bytes
1
0
MRA
SAR
MRB
DAR
CRA
CRB
MRA
SAR
MRB
DAR
CRA
CRB
MRA MRB
Reserved
(0 write)
MRA MRB
Reserved
(0 write)
SAR
DAR
CRA
CRB
CRA
CRB
SAR
DAR
3
2
Transfer information
in short address mode
Chain
transfer
Transfer information
for one transfer
(3 longwords)
Transfer information
for the 2nd transfer
in chain transfer
(3 longwords)
Lower addresses
Lower addresses
Transfer information
in full address mode
Transfer
information
for one transfer
(4 longwords)
Transfer
information
for the 2nd
transfer
in chain transfer
(4 longwords)
Start
address
4 bytes
1
0
3
2
Chain
transfer
Figure 7.2 Transfer Information on Data Area
Содержание H8SX/1650
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Страница 106: ...Section 4 Exception Handling Rev 2 00 Jun 28 2007 Page 84 of 666 REJ09B0311 0200...
Страница 142: ...Section 5 Interrupt Controller Rev 2 00 Jun 28 2007 Page 120 of 666 REJ09B0311 0200...
Страница 326: ...Section 8 I O Ports Rev 2 00 Jun 28 2007 Page 304 of 666 REJ09B0311 0200...
Страница 470: ...Section 12 Watchdog Timer WDT Rev 2 00 Jun 28 2007 Page 448 of 666 REJ09B0311 0200...
Страница 546: ...Section 13 Serial Communication Interface SCI Rev 2 00 Jun 28 2007 Page 524 of 666 REJ09B0311 0200...
Страница 566: ...Section 14 A D Converter Rev 2 00 Jun 28 2007 Page 544 of 666 REJ09B0311 0200...
Страница 574: ...Section 16 RAM Rev 2 00 Jun 28 2007 Page 552 of 666 REJ09B0311 0200...
Страница 584: ...Section 17 Clock Pulse Generator Rev 2 00 Jun 28 2007 Page 562 of 666 REJ09B0311 0200...
Страница 638: ...Section 19 List of Registers Rev 2 00 Jun 28 2007 Page 616 of 666 REJ09B0311 0200...
Страница 668: ...Section 20 Electrical Characteristics Rev 2 00 Jun 28 2007 Page 646 of 666 REJ09B0311 0200...
Страница 676: ...Appendix Rev 2 00 Jun 28 2007 Page 654 of 666 REJ09B0311 0200...
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Страница 692: ...H8SX 1650 Group Hardware Manual...