HD6417144 RENESAS [Renesas Technology Corp], HD6417144 Datasheet - Page 200

• Manufacturer Part Number: HD6417144
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family/SH7144 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

9. Bus State Controller (BSC)
When the wait is specified by software using WCR, the wait input WAIT signal from outside is
sampled. Figure 9.5 shows the WAIT signal sampling. The WAIT signal is sampled at the clock
rise one cycle before the clock rise when the Tw state shifts to the T2 state.
Rev.4.00 Mar. 27, 2008 Page 156 of 882
REJ09B0108-0400
Read
Write
Address
DACK
WRxx
WAIT
Figure 9.5 Wait State Timing of External Space Access
Data
Data
CSn
(Two Software Wait States + WAIT Signal Wait State)
RD
CK
T1
Tw
Tw
Two
T2