r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 258

• Manufacturer Part Number: r4f2456
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 6 Bus Controller (BSC)
Rev. 1.00 Sep. 19, 2008 Page 228 of 1342
REJ09B0467-0100
Read
Write
Note: Downward arrows indicate the timing of WAIT pin sampling.
n = 2 to 5
φ
WAIT
Address bus
RASn (CSn)
UCAS, LCAS
WE (HWR)
OE (RD)
Data bus
UCAS, LCAS
WE (HWR)
OE (RD)
Data bus
Figure 6.38 Example of Wait State Insertion Timing
(2-State Column Address Output)
T
Row address
p
T
r
High
High
By program wait
T
c1
Column address
T
w
By WAIT pin
T
w
T
c2