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Voltage Regulator Controller (VRC) and POR Module
MPC5566 Microcontroller Reference Manual, Rev. 2
Freescale Semiconductor
23-7
23.5.3.3
Input Value of Pins During POR Dependent on V
DD33
To avoid selecting the bypass clock because PLLCFG[0:1] and RSTCFG were not treated as 1s when POR
negates, V
DD33
must not lag V
DDSYN
and the RESET pin power when powering the device by more than
the V
DD33_LAG
specification. V
DD33
can independently lag V
DDSYN
or
RESET by more than the
V
DD33_LAG
specification. The V
DD33_LAG
specification applies regardless of whether V
RC33
is powered.
The V
DD33_LAG
specification only applies during power up. V
DD33
has no lead or lag requirements when
powering down.
Refer to the following sections or documents for more information:
Section 23.5.3.4, “Pin Values after POR Negates
MPC5566 Microcontroller Data Sheet
for the V
DD33_LAG
specification.
23.5.3.4
Pin Values after POR Negates
Depending on the final PLL mode required, the PLLCFG[0:1] and RSTCFG pins must have the values
shown in
after POR negates. Refer to application note
AN2613, “MPC5554 Minimum Board
Configuration”
for one example of the external configuration circuit.
NOTE
After POR negates, RSTCFG and PLLCFG[0:1] can change to their final
value, but do not switch through the 0, 0, 0 state on the pins.
Table 23-2. Values after POR Negation
Final PLL Mode
RSTCFG
PLLCFG[0]
PLLCFG[1]
Crystal reference. Using RSTCFG to select Crystal Reference as
the default.
1
—
—
Crystal reference. Using RSTCFG to
not
select Crystal Reference
as the default.
—
1
—
External reference
0
1
1
Dual-controller
—
1
—
Summary of Contents for MPC5566
Page 81: ...Introduction MPC5566 Microcontroller Reference Manual Rev 2 1 24 Freescale Semiconductor...
Page 135: ...Signal Description MPC5566 Microcontroller Reference Manual Rev 2 2 54 Freescale Semiconductor...
Page 189: ...Reset MPC5566 Microcontroller Reference Manual Rev 2 4 20 Freescale Semiconductor...
Page 603: ...Flash Memory MPC5566 Microcontroller Reference Manual Rev 2 13 38 Freescale Semiconductor...
Page 609: ...SRAM MPC5566 Microcontroller Reference Manual Rev 2 14 6 Freescale Semiconductor...
Page 1073: ...MPC5566 Microcontroller Reference Manual Rev 2 22 36 Freescale Semiconductor...
Page 1185: ...Nexus MPC5566 Microcontroller Reference Manual Rev 2 25 92 Freescale Semiconductor...