Philips S1D13505 用户手册
Epson Research and Development
Page 75
Vancouver Design Center
Hardware Functional Specification
S1D13505
Issue Date: 01/02/02
X23A-A-001-14
7.4.2 Power Save Status
Figure 7-23: Power Save Status and Local Bus Memory Access Relative to Power Save Mode
Note
Power Save can be initiated through either the SUSPEND# pin or Software Suspend Enable Bit.
Note
It is recommended that memory access not be performed after a Power Save Mode has been
initiated.
initiated.
Table 7-22: Power Save Status and Local Bus Memory Access Relative to Power Save Mode
Symbol
Parameter
Min
Max
Units
t1
Power Save initiated to rising edge of Power Save Status and the
last time memory access by the local bus may be performed.
last time memory access by the local bus may be performed.
129
130
Frames
t2
Power Save deactivated to falling edge of Power Save Status
12
MCLK
t3
Falling edge of Power Save Status to the earliest time the local bus
may perform a memory access
may perform a memory access
8
MCLK
Power Save
t1
Power Save Status Bit
Memory Access
not allowed
allowed
t2
t3
allowed