SH7615 Datasheet, PDF (509/925 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH
RISC engine Family/SH7600 Series

Bit 15: DM1
0
1
Bit 14: DM0
0
1
0
1
Description
Fixed destination address
(Initial value)
Destination address is incremented (+1 for byte transfer size,
+2 for word transfer size, +4 for longword transfer size, +16
for 16-byte transfer size)
Destination address is decremented (–1 for byte transfer size,
–2 for word transfer size, –4 for longword transfer size, –16
for 16-byte transfer size)
Reserved (setting prohibited)
Bits 13 and 12—Source Address Mode Bits 1, 0 (SM1, SM0): Select whether the DMA source
address is incremented, decremented or left fixed. (In single address mode, SM1 and SM0 are
ignored when transfers are made from an external device with DACK to a memory-mapped
external device, or external memory.) For a 16-byte transfer, the address is incremented by +16
regardless of the SM1 and SM0 values. SM1 and SM0 are initialized to 00 by a reset and in
standby mode. Values are retained during a module standby.
Bit 13: SM1
0
1
Bit 12: SM0
0
1
0
1
Description
Fixed source address (+16 for 16-byte transfer size)
(Initial value)
Source address is incremented (+1 for byte transfer size, +2
for word transfer size, +4 for longword transfer size, +16 for
16-byte transfer size)
Source address is decremented (–1 for byte transfer size, –2
for word transfer size, –4 for longword transfer size, +16 for
16-byte transfer size)
Reserved (setting prohibited)
Bits 11 and 10—Transfer Size Bits (TS1, TS0): Select the DMA transfer size. When 11 is set to
bits TS1 and TS0 (in the 16-byte unit), request mode is available only in auto-request mode and at
edge detection in external request mode. When 11 is set to bits TS1 and TS0 (in the 16-byte unit)
and level detection in external request mode and internal peripheral-module request mode are set,
system operations are not guaranteed. TS1 and TS0 are initialized to 00 by a reset and in standby
mode. Values are retained during a module standby.
Bit 11: TS1
0
1
Bit 10: TS0
0
1
0
1
Description
Byte unit
Word (2-byte) unit
Longword (4-byte) unit
16-byte unit (4 longword transfers)
(initial value)
Rev. 2.00, 03/05, page 471 of 884