HD6417706 RENESAS [Renesas Technology Corp], HD6417706 Datasheet - Page 250

• Manufacturer Part Number: HD6417706
• Description: Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

However, the WAIT signal is ignored in the following cases:
Rev. 4.00, 03/04, page 204 of 660
Write
Read
In 16-byte DMA transfer or dual addressing mode, or when writing data to the external address
area
In 16-byte DMA transfer or single addressing mode, or when transferring data from an
external device with DACK to the external address area
When accessing cache for write back
Figure 8.10 Basic Interface Wait State Timing (Wait State Insertion by WAIT
A25 to A0
WAIT
RD
D31 to D0
WEn
D31 to D0
RD/WR
CKIO
BS
CSn
T1
WAITSEL = 1)
Tw
Tw
Wait states inserted
by WAIT signal
Tw
WAIT Signal
WAIT
WAIT
T2