UPD784938 Datasheet, PDF (625/733 Pages) NEC – 16-Bit Single-Chip Microcontrollers

CHAPTER 24 LOCAL BUS INTERFACE FUNCTION
Figure 24-13. Access Wait Function Write Timing (1/2)
(a) 0 wait cycles set
fCLK^Note
A8 to A15
(output)
High address
AD0 to AD7 Hi-Z Low
Hi-Z
(output)
address
Data
Hi-Z
ASTB (output)
WR (output)
(b) 1 wait cycle set
fCLK^Note
A8 to A15
(output)
High address
AD0 to AD7 Hi-Z Low
Hi-Z
(output)
address
Data
Hi-Z
ASTB (output)
WR (output)
Note fCLK: Internal system clock frequency. This signal is only present inside the µPD784938.
Preliminary User’s Manual U13987EJ1V0UM00
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