mc9s12q128 Freescale Semiconductor, Inc, mc9s12q128 Datasheet - Page 615

• Manufacturer Part Number: mc9s12q128
• Description: Hcs12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

A.3
A.4
This section summarizes the electrical characteristics of the various startup scenarios for Oscillator and
Phase-Locked-Loop (PLL).
A.4.1
Table A-15
startup behavior can be found in the Clock and Reset Generator (CRG) Block User Guide.
A.4.1.1
The release level V
if the device is powered externally. After releasing the POR reset the oscillator and the clock quality check
are started. If after a time t
clock. The fastest startup time possible is given by n
A.4.1.2
The release level V
if the device is powered externally. After releasing the LVR reset the oscillator and the clock quality check
are started. If after a time t
clock. The fastest startup time possible is given by n
Freescale Semiconductor
Conditions are shown in
Num
1
2
3
4
5
6
Conditions are shown in
Num
1
2
MSCAN
Reset, Oscillator and PLL
C
P MSCAN Wake-up dominant pulse filtered
P MSCAN Wake-up dominant pulse pass
C
T
T
D
D
D
D
summarizes several startup characteristics explained in this section. Detailed description of the
Startup
POR
LVR
POR release level
POR assert level
Reset input pulse width, minimum input time
Startup from Reset
Interrupt pulse width, IRQ edge-sensitive
mode
Wait recovery startup time
PORR
LVRR
Table A-4
Table A-4
and the assert level V
and the assert level V
CQOUT
CQOUT
Table A-14. MSCAN Wake-up Pulse Characteristics
unless otherwise noted
Rating
unless otherwise noted
no valid oscillation is detected, the MCU will start using the internal self
no valid oscillation is detected, the MCU will start using the internal self
Rating
Table A-15. Startup Characteristics
PORA
LVRA
MC9S12Q128
Rev 1.09
are derived from the V
are derived from the V
uposc
uposc
PW
Symbol
.
.
V
PW
V
n
t
PORR
PORA
WRS
RST
RSTL
IRQ
Symbol
t
t
WUP
WUP
0.97
Min
192
20
—
—
2
Min
DD
DD
—
5
Appendix A Electrical Characteristics
supply. They are also valid
supply. They are also valid
Typ
—
—
—
—
—
—
Typ
—
—
Max
Max
2.07
—
196
2
—
—
—
14
Unit
us
us
Unit
n
t
t
osc
ns
cyc
V
V
osc
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