S29GL128S SPANSION [SPANSION], S29GL128S Datasheet - Page 79

• Manufacturer Part Number: S29GL128S
• Manufacturer: SPANSION [SPANSION]

March 16, 2012 S29GL_128S_01GS_00_06
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 Reset is initiated by the RESET# signal going to V
Figure 10.4, Hardware Reset on page
IL
, but not at V
RESET#
CE#
SS
D a t a
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
S h e e t
Figure 10.4 Hardware Reset
SS
, the device draws CMOS standby current (I
79.
tRP
®
Family
tRPH
CC5
VCS
current.
, a later transition to the Hardware Reset state will
IL
.
VCS
tRH
tCEH
time to complete.
CC4
). If RESET# is
VCS
, the Cold
79