h8s-2169 Renesas Electronics Corporation., h8s-2169 Datasheet - Page 215

• Manufacturer Part Number: h8s-2169
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

7.3.7
In block transfer mode, one operation transfers one block of data. Either the transfer source or the
transfer destination is specified as a block area.
The block size is 1 to 256. When the transfer of one block ends, the initial state of the block size
counter and the address register specified in the block area is restored. The other address register is
successively incremented or decremented, or left fixed.
From 1 to 65,536 transfers can be specified. Once the specified number of transfers have ended, a
CPU interrupt is requested.
Table 7.7 lists the register information in block transfer mode and figure 7.8 shows memory
mapping in block transfer mode.
Table 7.7
Name
DTC source address register
DTC destination address register
DTC transfer count register AH
DTC transfer count register AL
DTC transfer count register B
Block Transfer Mode
Register Information in Block Transfer Mode
Abbreviation
SAR
DAR
CRAL
CRB
CRAH
Rev. 3.00 Jan 18, 2006 page 187 of 1044
Function
Transfer source address
Transfer destination address
Holds block size
Block size count
Transfer counter
Section 7 Data Transfer Controller
REJ09B0280-0300