External Memory Read Timing In Multiplexed Bus Mode - NEC PD78076 User Manual

Figure 23-6. External Memory Read Timing in Multiplexed Bus Mode
ASTB
RD
AD0 to AD7
A8 to A15
ASTB
RD
AD0 to AD7
A8 to A15
Internal Wait Signal
(1-clock wait)
ASTB
RD
AD0 to AD7
A8 to A15
WAIT
536
CHAPTER 23 EXTERNAL DEVICE EXPANSION FUNCTION
(a) No wait (PW1, PW0 = 0, 0) setting
Lower Address
(b) Wait (PW1, PW0 = 0, 1) setting
Lower Address
(c) External wait (PW1, PW0 = 1, 1) setting
Lower Address
Read Data
Higher Address
Read Data
Higher Address
Read Data
Higher Address