UPD78F0078GK-9ET-A Renesas Electronics America, UPD78F0078GK-9ET-A Datasheet - Page 424

• Manufacturer Part Number: UPD78F0078GK-9ET-A
• Manufacturer: Renesas Electronics America

Specifications of UPD78F0078GK-9ET-A

• Lead Free Status / Rohs Status: Supplier Unconfirmed

CHAPTER 20 EXTERNAL DEVICE EXPANSION FUNCTION
Figure 20-5. Instruction Fetch from External Memory
(a) No wait (PW1, PW0 = 0, 0) setting
ASTB
RD
AD0 to AD7
Lower address
Instruction code
A8 to A15
Higher address
(b) Wait (PW1, PW0 = 0, 1) setting
ASTB
RD
AD0 to AD7
Lower address
Instruction code
Higher address
A8 to A15
Internal wait signal
(1-clock wait)
(c) External wait (PW1, PW0 = 1, 1) setting
ASTB
RD
AD0 to AD7
Lower address
Instruction code
A8 to A15
Higher address
WAIT
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User’s Manual U14260EJ4V0UD