Datasheet

Analog-to-Digital Converter (ATD)
MC68HC812A4 Data Sheet, Rev. 7
196 Freescale Semiconductor
16.3 Block Diagram
Figure 16-1. ATD Block Diagram
CHANNEL 0
SAR
RC DAC ARRAY
AND COMPARATOR
V
DDA
V
SSA
V
RL
V
RH
ANALOG MUX
AND
SAMPLE BUFFER AMP
AN7/PAD7
AN6/PAD6
AN5/PAD5
AN4/PAD4
AN3/PAD3
AN2/PAD2
AN1/PAD1
AN0/PAD0
CHANNEL 1
CHANNEL 2
CHANNEL 3
CHANNEL 4
CHANNEL 5
CHANNEL 6
CHANNEL 7
MODE AND TIMING CONTROL
CLOCK
SELECT/PRESCALE
PORT AD DATA
INPUT REGISTER