mc68hc908gp20 Freescale Semiconductor, Inc, mc68hc908gp20 Datasheet - Page 95

• Manufacturer Part Number: mc68hc908gp20
• Description: M68hc08 Family Of 8-bit Microcontroller Units Mcus
• Manufacturer: Freescale Semiconductor, Inc

5.8.2 ADC Data Register
MC68HC908GP20
Freescale Semiconductor
—
Rev 2.1
Address: $0003D
One 8-bit result register, ADC data register (ADR), is provided. This
register is updated each time an ADC conversion completes.
Reset:
NOTE: If any unused channels are selected, the resulting ADC conversion will be unknown
Read:
Write:
ADCH4
0
0
0
0
0
0
0
0
↓
1
1
1
1
1
or reserved.
Bit 7
AD7
0
ADCH3
0
0
0
0
0
0
0
0
↓
1
1
1
1
1
Figure 5-3. ADC Data Register (ADR)
= Unimplemented
AD6
6
0
Table 5-1. Mux Channel Select
ADCH2
↓
0
0
0
0
1
1
1
1
0
1
1
1
1
AD5
5
0
ADCH1
AD4
4
0
↓
0
0
1
1
0
0
1
1
1
0
0
1
1
AD3
ADCH0
3
0
0
1
0
1
0
1
0
1
↓
1
0
1
0
1
AD2
2
0
Advance Information
ADC power off
Input Select
PTB0/AD0
PTB1/AD1
PTB2/AD2
PTB3/AD3
PTB4/AD4
PTB5/AD5
PTB6/AD6
PTB7/AD7
Reserved
Reserved
Reserved
AD1
V
V
1
0
REFH
SSAD
Bit 0
AD0
0
95