Section 6 Bus Controller (BSC)
R01UH0309EJ0500 Rev. 5.00 Page 277 of 1408
Sep 24, 2012
H8S/2456, H8S/2456R, H8S/2454 Group
T
Rp
φ
SDRAMφ
RAS
CAS
WE
CKE
PALL REF
NOP
Address bus
T
Rr
T
Rr1
T
Rcw
T
Rc2
Precharge-sel
High
Figure 6.68 Auto Refresh Timing
(TPC = 0, TPC0 = 0, RLW1 = 0, RLW0 = 1)
