Technical information

( 58 / 76 )
Figure 5.3 Memory expansion mode and microprocessor mode (with wait, multiplex bus)
Memory expansion mode and microprocessor mode
(with wait, accessing external memory area and using multiplex bus)
Read timing
BCLK
ALE
ADi
DBi
Write timing
BCLK
ALE
Conditions:
• V
CC = 5 V
• Input timing voltage: VIL = 0.8 V, VIH = 2.5 V
• Output timing voltage: VOL = 0.8 V, VOH = 2.0 V
ADi
DBi
CSi
ADi
BHI
RD
WR, WRL,
WRH
ADi
BHI
CSi