mcf52221 Freescale Semiconductor, Inc, mcf52221 Datasheet - Page 35

• Manufacturer Part Number: mcf52221
• Description: Mcf52223 Coldfire Microcontroller 32-bits Microcontrollers With Usb And Zigbee
• Manufacturer: Freescale Semiconductor, Inc

2.9
Freescale Semiconductor
1
2
NUM
All AC timing is shown with respect to 50% V
During low power STOP, the synchronizers for the RSTI input are bypassed and RSTI is asserted asynchronously to the
system. Thus, RSTI must be held a minimum of 100 ns.
R1
R2
R3
R4
Reset Timing
RSTI input valid to CLKOUT High
CLKOUT High to RSTI Input invalid
RSTI input valid time
CLKOUT High to RSTO Valid
CLKOUT
RSTO
RSTI
GPIO Outputs
GPIO Inputs
Table 29. Reset and Configuration Override Timing
2
1R1
Figure 7. RSTI and Configuration Override Timing
CLKOUT
Characteristic
(V
MCF52223 ColdFire Microcontroller, Rev. 2
DD
= 2.7 to 3.6 V, V
R3
Figure 6. GPIO Timing
DD
G3
levels unless otherwise noted.
SS
G1
R2
G4
= 0 V, T
R4
A
= T
Symbol
t
L
t
CHROV
G2
t
t
RVCH
CHRI
RIVT
to T
H
)
1
Min
1.5
—
9
5
R4
Electrical Characteristics
Max
10
—
—
—
Unit
t
CYC
ns
ns
ns
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