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Device Overview S12VRP-Series
MC9S12VRP Family Reference Manual Rev. 1.3
30
NXP Semiconductors
1.8.2.1
RESET — External Reset Signal
The RESET signal is an active low, bidirectional control signal. It acts as an input to initialize the MCU to
a known start-up state, and an output when an internal MCU function causes a reset. The RESET pin has
an internal pull-up device.
1.8.2.2
TEST — Test Pin
This input only pin is reserved for factory test. This pin has an internal pull-down device.
NOTE
The TEST pin must be tied to ground in all applications.
1.8.2.3
BKGD / MODC — Background Debug Signal
The BKGD/MODC pin is used as a pseudo-open-drain pin for the background debug communication. It
is used as an MCU operating mode select pin during reset. The state of this pin is latched to the MODC bit
at the rising edge of RESET. The BKGD pin has an internal pull-up device.
1.8.2.4
PAD[5:0] / KWAD[5:0] — Port AD Input Signals of ADC
PAD[5:0] are general-purpose input or output signals. The signals can be configured on a per signal basis
as interrupt inputs with wake-up capability (KWAD[5:0]).These signals can have a pull-up or pull-down
device selected and enabled on a per signal basis. Out of reset the pull devices are disabled.
1.8.2.5
PE[1:0] — Port E I/O Signals
PE[1:0] are general-purpose input or output signals. The signals each have pull-down device, enabled by
a single control bit for this signal group. Out of reset the pull-down devices are enabled.
1.8.2.6
PP[5:0] / KWP[5:0] — Port P I/O Signals
PP[5:0] are general-purpose input or output signals. The signals can be configured on a per signal basis as
interrupt inputs with wake-up capability (KWP[5:0]). PP[2:0] have high current drive strength. PP[2] and
PP[0] have an over-current interrupt feature. They can have a pull-up or pull-down device selected and
enabled on per signal basis. Out of reset the pull devices are disabled.
1.8.2.7
PS[3:0] — Port S I/O Signals
PS[3:0] are general-purpose input or output signals. They can have a pull-up or pull-down device selected
and enabled on per signal basis. Out of reset the pull-up devices are enabled.
1.8.2.8
PT[3:0] — Port T I/O Signals
PT[3:0] are general-purpose input or output signals. They can have a pull-up or pull-down device selected
and enabled on per signal basis. Out of reset the pull devices are disabled.
Summary of Contents for MC9S12VRP64
Page 16: ...MC9S12VRP Family Reference Manual Rev 1 3 16 NXP Semiconductors ...
Page 46: ...Device Overview S12VRP Series MC9S12VRP Family Reference Manual Rev 1 3 46 NXP Semiconductors ...
Page 236: ...S12S Debug Module S12DBGV2 MC9S12VRP Family Reference Manual Rev 1 3 236 NXP Semiconductors ...
Page 244: ...Interrupt Module S12SINTV1 MC9S12VRP Family Reference Manual Rev 1 3 244 NXP Semiconductors ...
Page 358: ...Timer Module TIM16B2CV3 MC9S12VRP Family Reference Manual Rev 1 3 358 NXP Semiconductors ...
Page 436: ...Supply Voltage Sensor BATSV2 MC9S12VRP Family Reference Manual Rev 1 3 436 NXP Semiconductors ...
Page 528: ...NVM Electrical Parameters MC9S12VRP Family Reference Manual Rev 1 3 528 NXP Semiconductors ...
Page 530: ...Package Information MC9S12VRP Family Reference Manual Rev 1 3 530 NXP Semiconductors ...
Page 531: ...Package Information MC9S12VRP Family Reference Manual Rev 1 3 NXP Semiconductors 531 ...
Page 532: ...Package Information MC9S12VRP Family Reference Manual Rev 1 3 532 NXP Semiconductors ...