Datasheet

V850ES/JG3-H, V850ES/JH3-H CHAPTER 5 BUS CONTROL FUNCTION
R01UH0042EJ0500 Rev.5.00 Page 191 of 1513
Aug 12, 2011
5.5.3 Relationship between programmable wait and external wait
Wait cycles are inserted as the result of an OR operation between the wait cycles specified by the set value of the
programmable wait and the wait cycles controlled by the WAIT pin.
Wait control
Programmable wait
Wait via WAIT pin
For example, if the timing of the programmable wait and the WAIT pin signal is as illustrated below, three wait states will
be inserted in the bus cycle.
Figure 5-3. Inserting Wait Example
CLKOUT
T1
T2 TW TW TW T3
WAIT pin
Wait via WAIT pin
Programmable wait
Wait control
Remark The circles indicate the sampling timing.