s29gl01gs Meet Spansion Inc., s29gl01gs Datasheet - Page 73

• Manufacturer Part Number: s29gl01gs
• Manufacturer: Meet Spansion Inc.

March 21, 2011 S29GL_128S_01GS_00_02
10.3.2
Hardware (Warm) Reset
During Hardware Reset (t
When RESET# continues to be held at V
held at V
If a Cold Reset has not been completed by the device when RESET# is asserted Low after t
Reset# EA will be performed instead of the Warm RESET#, requiring t
See
After the device has completed POR and entered the Standby state, any later transition to the Hardware
Reset state will initiate the Warm Reset Embedded Algorithm. A Warm Reset is much shorter than a Cold
Reset, taking tens of µs (t
is stopped and the EAC is returned to its POR state without reloading EAC algorithms from non-volatile
memory. After the Warm Reset EA completes, the interface will remain in the Hardware Reset state if
RESET# remains Low. When RESET# returns High the interface will transit to the Standby state. If RESET#
is High at the end of the Warm Reset EA, the interface will directly transit to the Standby state.
If POR has not been properly completed by the end of t
cause a transition to the Power-on Reset interface state and initiate the Cold Reset Embedded Algorithm.
This ensures the device can complete a Cold Reset even if some aspect of the system Power-On voltage
ramp-up causes the POR to not initiate or complete correctly. The RY/BY# pin is Low during cold or warm
reset as an indication that the device is busy performing reset operations. Hardware (Warm) Reset
Hardware Reset is initiated by the RESET# signal going to V
Figure 10.4, Hardware Reset on page
IL
, but not at V
RESET#
D a t a
CE#
S h e e t
SS
RPH
RPH
, the standby current is greater.
) to complete. During the Warm Reset EA, any in progress Embedded Algorithm
) the device will draw I
GL-S MirrorBit
( P r e l i m i n a r y )
Figure 10.4 Hardware Reset
SS
, the device draws CMOS standby current (I
73.
tRP
®
Family
CC5
tRPH
VCS
current.
, a later transition to the Hardware Reset state will
IL
.
VCS
time to complete.
tRH
CC4
). If RESET# is
VCS
, the Cold
73