Freescale Semiconductor MC9S12ZVM series, Reference Manual

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Chapter 1 Device Overview MC9S12ZVM-Family
MC9S12ZVM Family Reference Manual Rev. 1.3
Freescale Semiconductor 47
1.8.1.2 ADC Internal Channels
The ADC0 and ADC1 internal channel mapping is shown in Table 1-7 and Table 1-8 respectively.
The GDU current sense amplifier outputs are mapped to pins with ADC input functionality. Thus
configuring the ADC to convert these pin channels automatically converts the current sense outputs.
The ADC internal temperature sensors must be calibrated by the user. No electrical parameters are
specified for these sensors. The VREG temperature sensor electrical parameters are given in the
appendices.
1.8.2 Motor Control Loop Signals
The motor control loop signals are described in 1.13.3.1 Motor Control Loop Overview
Table 1-7. Usage of ADC0 Internal Channels
ADCCMD_1 CH_SEL[5:0]
ADC Channel
Usage
0 0 1 0 0 0 Internal_0 ADC0 temperature sensor
0 0 1 0 0 1 Internal_1 VREG temperature sensor or bandgap (V
BG
)
(1)
1. Selectable in CPMU
0 0 1 0 1 0 Internal_2 GDU phase multiplexer voltage
0 0 1 0 1 1 Internal_3 GDU DC link voltage monitor
0 0 1 1 0 0 Internal_4 BATS VSUP sense voltage
0 0 1 1 0 1 Internal_5 Reserved
0 0 1 1 1 0 Internal_6 Reserved
0 0 1 1 1 1 Internal_7 Reserved
Table 1-8. Usage of ADC1 Internal Channels
ADCCMD_1 CH_SEL[5:0]
ADC Channel
Usage
0 0 1 0 0 0 Internal_0 ADC1 temperature sensor
0 0 1 0 0 1 Internal_1 VREG temperature sensor or bandgap (V
BG
)
(1)
1. Selectable in CPMU
0 0 1 0 1 0 Internal_2 GDU phase multiplexer voltage
0 0 1 0 1 1 Internal_3 GDU DC link voltage monitor
0 0 1 1 0 0 Internal_4 Reserved
0 0 1 1 0 1 Internal_5 Reserved
0 0 1 1 1 0 Internal_6 Reserved
0 0 1 1 1 1 Internal_7 Reserved