HD6412332 RENESAS [Renesas Technology Corp], HD6412332 Datasheet - Page 233

• Manufacturer Part Number: HD6412332
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

7.1.3
Tables 7.1 (1) and (2) summarize DMAC functions in short address mode and full address mode,
respectively.
Table 7.1 (1)
Transfer Mode
Dual address mode
•
•
•
Single address mode
•
•
•
Sequential mode
⎯ 1-byte or 1-word transfer executed
⎯ Memory address
⎯ 1 to 65,536 transfers
Idle mode
⎯ 1-byte or 1-word transfer executed
⎯ Memory address fixed
⎯ 1 to 65,536 transfers
Repeat mode
⎯ 1-byte or 1-word transfer executed
⎯ Memory address incremented/
⎯ After specified number of transfers
1-byte or 1-word transfer executed for
one transfer request
Transfer in 1 bus cycle using DACK pin
in place of address specifying I/O
Specifiable for sequential, idle, and
repeat modes
for one transfer request
incremented/decremented by 1 or 2
for one transfer request
for one transfer request
decremented by 1 or 2
(1 to 256), initial state is restored
and operation continues
Overview of Functions
Overview of DMAC Functions (Short Address Mode)
Transfer Source
•
•
•
•
•
•
TPU channel 0 to
5 compare
match/input
capture A
interrupt
SCI transmit-
data-empty
interrupt
SCI receive-
data-full interrupt
A/D converter
conversion end
interrupt
External request
External request
Rev.4.00 Sep. 07, 2007 Page 203 of 1210
Source
24/16
24/DACK
Address Register Bit Length
REJ09B0245-0400
Destination
16/24
DACK/24