Datasheet

MC9S08LC60 Series Data Sheet: Technical Data, Rev. 4
Freescale Semiconductor 267
Chapter 15
Analog-to-Digital Converter (S08ADC12V1)
15.1 Introduction
The 12-bit analog-to-digital converter (ADC) is a successive approximation ADC designed for operation
within an integrated microcontroller system-on-chip.
15.1.1 ADC Configuration Information
The ADC channel assignments, alternate clock function, and hardware trigger function are configured as
described in this section for the MC9S08LC60/36/20 Family of devices.
15.1.1.1 Channel Assignments
The ADC channel assignments for the MC9S08LC60/36/20 devices are shown in Table 15-1. Reserved
channels convert to an unknown value.
Table 15-1. ADC Channel Assignment
ADCH Channel Input Pin Control ADCH Channel Input Pin Control
00000 AD0 PTA0/ADP0 ADPC0 10000 AD16 V
REFL
N/A
00001 AD1 PTA1/ADP1 ADPC1 10001 AD17 V
REFL
N/A
00010 AD2 PTA2/ADP2 ADPC2 10010 AD18 V
REFL
N/A
00011 AD3 PTA3/ADP3 ADPC3 10011 AD19 V
SS
N/A
00100 AD4 PTA4/ADP4 ADPC4 10100 AD20 V
LCD
N/A
00101 AD5 PTA5/ADP5 ADPC5 10101 AD21 V
LL1
N/A
00110 AD6 PTA6/ADP6 ADPC6 10110 AD22 V
DDASW
N/A
00111 AD7 PTA7/ADP7 ADPC7 10111 AD23 V
DDA
N/A
01000 AD8 V
REFL
N/A 11000 AD24 V
DDSW
N/A
01001 AD9 V
REFL
N/A 11001 AD25 V
DD
N/A
01010 AD10 V
REFL
N/A 11010 AD26 Temperature Sensor N/A
01011 AD11 V
REFL
N/A 11011 AD27 Internal Bandgap
1
1
Requires BGBE =1 in SPMSC1 see Section 5.8.8, “System Power Management Status and Control 1
Register (SPMSC1)”. For value of bandgap voltage reference see Section A.5, “DC Characteristics”.
N/A
01100 AD12 V
REFL
N/A 11100 V
REFH
V
REFH
N/A
01101 AD13 V
REFL
N/A 11101 V
REFH
V
REFH
N/A
01110 AD14 V
REFL
N/A 11110 V
REFL
V
REFL
N/A
01111 AD15 V
REFL
N/A 11111 Module
Disabled
None N/A