CHAPTER 5 MEMORY ACCESS CONTROL FUNCTION
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User’s Manual U14359EJ4V0UM
5.2.5 Page ROM access
Figure 5-5. Page ROM Access Timing (1/4)
(a) When read (halfword/word access with 8-bit bus width or
word access with 16-bit bus width)
T1
TW
Off-page address
Data
WAIT (input)
D0 to D15 (I/O)
D0 to D7 (I/O)
IOWR (output)
IORD (output)
LWR/LCAS (output)
UWR/UCAS (output)
WE (output)
OE (output)
RD (output)
CSn/RASm (output)
BCYST (output)
A0 to A25 (output)
CLKOUT (output)
Data
Note
On-page address
TO1
TO2
T2
Note
When accessing a word boundary with 8-bit bus width.
Remarks 1.
The
circle
{
indicates the sampling timing.
2.
The broken lines indicate the high-impedance state.
3.
n = 0 to 7, m = 1, 3, 4, 6