HD6432621 Hitachi, HD6432621 Datasheet - Page 244
HD6432621
Manufacturer Part Number
HD6432621
Description
(HD64F262x Series) 16-Bit Microcomputer
Manufacturer
Hitachi
Datasheet
1.HD6432621.pdf
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8.3.8
Setting the CHNE bit to 1 enables a number of data transfers to be performed consectutively in
response to a single transfer request. SAR, DAR, CRA, CRB, MRA, and MRB, which define data
transfers, can be set independently.
Figure 8-9 shows the memory map for chain transfer.
In the case of transfer with CHNE set to 1, an interrupt request to the CPU is not generated at the
end of the specified number of transfers or by setting of the DISEL bit to 1, and the interrupt
source flag for the activation source is not affected.
200
DTC vector
address
Chain Transfer
Register information
start address
Figure 8-9 Chain Transfer Memory Map
Register information
Register information
CHNE = 1
CHNE = 0
Destination
Destination
Source
Source
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