XC68HC705F32 Motorola, XC68HC705F32 Datasheet - Page 94

• Manufacturer Part Number: XC68HC705F32
• Description: MICROCONTROLLER
• Manufacturer: Motorola

9
Caution: Any write to the A/D status/control register will abort the current conversion, reset the
At power-on or external reset, both the ADRC and ADON bits are cleared, thus the A/D is disabled.
MOTOROLA
9-2
(V
V
RH
RL
PD7/AN7
PD6/AN6
PD5/AN5
PD4/AN4
PD3/AN3
PD2/AN2
PD1/AN1
PD0/AN0
+V
= AV
RL
V
conversion complete flag and start a new conversion on the selected channel.
RH
)/2
SS
Figure 9-1 A/D converter block diagram
A/D result register (ADDATA) $4E
Result
Successive approximation
A/D CONVERTER
with sample and hold
8-bit capacitive DAC
register and control
A/D status/control register (ADSCR) $4F
CH0
CH1
CH2
CH3
0
ADON
VRL = AVSS
VRH
MC68HC05F32
ADRC
COCO
TPG