HD6412350 Hitachi, HD6412350 Datasheet - Page 192

• Manufacturer Part Number: HD6412350
• Description: (HD6412350 / HD6432351) 16-BIT MICROCONTROLLER
• Manufacturer: Hitachi

When the RCW bit is set to 1, RAS signal output is delayed by one cycle. The width of the RAS
signal should be adjusted with bits RLW1 and RLW0. These bits are only enabled in refresh
operations.
Figure 6-26 shows the timing when the RCW bit is set to 1.
172
Refresh request signal
and CMF bit setting signal
RTCNT
RTCOR
CAS, LCAS
ø
CS (RAS)
ø
Figure 6-24 Compare Match Timing
Figure 6-25 CBR Refresh Timing
T
Rp
N
T
Rr
T
Rc1
N
T
Rc2
H'00