CHAPTER 5 MEMORY ACCESS CONTROL FUNCTION
145
User’s Manual U14359EJ4V0UM
Figure 5-2. SRAM, External ROM, External I/O Access Timing (2/6)
(b) When read (address setup wait, idle state insertion)
TASW
T1
Address
Data
WAIT (input)
D0 to D15 (I/O)
IOWR (output)
IORD (output)
Note
LWR/LCAS (output)
UWR/UCAS (output)
WE (output)
OE (output)
RD (output)
CSn/RASm (output)
BCYST (output)
A0 to A25 (output)
CLKOUT (output)
TI
T2
LBE (output)
UBE (output)
Note
When the IOEN bit of the BCP register is set to 1.
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