Datasheet

Table Of Contents
MC9S08SH8 MCU Series Data Sheet, Rev. 3
Freescale Semiconductor 121
Chapter 9
Analog-to-Digital Converter (S08ADCV1)
9.1 Introduction
The 10-bit analog-to-digital converter (ADC) is a successive approximation ADC designed for operation
within an integrated microcontroller system-on-chip.
NOTE
The MC9S08SH8 Family of devices do not include stop1 mode.
The ADC channel assignments, alternate clock function, and hardware trigger function are configured as
described below for the MC9S08SH8 family of devices.
9.1.1 Channel Assignments
The ADC channel assignments for the MC9S08SH8 devices are shown in Table 9-1. Reserved channels
convert to an unknown value.
Table 9-1. ADC Channel Assignment
ADCH Channel Input ADCH Channel Input
00000 AD0 PTA0/ADP0 10000 AD16 V
SS
00001 AD1 PTA1/ADP1 10001 AD17 V
SS
00010 AD2 PTA2/ADP2 10010 AD18 V
SS
00011 AD3 PTA3/ADP3 10011 AD19 V
SS
00100 AD4 PTB0/ADP4 10100 AD20 V
SS
00101 AD5 PTB1/ADP5 10101 AD21 Reserved
00110 AD6 PTB2/ADP6 10110 AD22 Reserved
00111 AD7 PTB3/ADP7 10111 AD23 Reserved
01000 AD8 PTC0/ADP8 11000 AD24 Reserved
01001 AD9 PTC1/ADP9 11001 AD25 Reserved
01010 AD10 PTC2/ADP10 11010 AD26 Temperature Sensor
1
1
For information, see Section 9.1.4, “Temperature Sensor”.
01011 AD11 PTC3/ADP11 11011 AD27 Internal Bandgap
2
2
Requires BGBE =1 in SPMSC1 see Section 5.7.8, “System Power Management Status and Control 2 Register (SPMSC2)”.
For value of bandgap voltage reference see Section A.6, “DC Characteristics”.
01100 AD12 V
SS
11100 - Reserved
01101 AD13 V
SS
11101 V
REFH
V
DD
01110 AD14 V
SS
11110 V
REFL
V
SS
01111 AD15 V
SS
11111 Module Disabled None