ADP315PC87570 National Semiconductor, ADP315PC87570 Datasheet - Page 39

• Manufacturer Part Number: ADP315PC87570
• Description: Keyboard and Power Management Controller
• Manufacturer: National Semiconductor

Bus Interface Unit (BIU)
T1
T2
T1
T2
T1
T2
Bus State
Normal Read
Late Write
Normal Read
CLK
A0-18
SEL0-1,
SELIO
In
In
Out
D0-15
RD
WR0-1
BST0-2
Figure 3-5. Late Write Bus Cycle Between Normal Read Bus Cycles with 0 Wait
Bus State
T1
TIW
T2
T hold
CLK
A0-18
SELn
Out
D0-15
RD
WR0-1
BST0-2
Figure 3-6. Late Write Bus Cycle with 1 Internal Wait and 1 Hold
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