Analog-to-Digital Converter
Block Diagram
Panasonic Semiconductor Development Company MN102H75K/F75K/85K/F85K LSI User Manual
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Panasonic
6.3 Block Diagram6.4 A/D Conversion Timing

6.4.1 Selecting the ADC Clock Source

Calculate the A/D conversion time as follows:

conversion time (s) = [12 (cycles) × (BOSC cycle) (s) × divide-by ratio] / ch

For example, if you set the clock source to BOSC/8, the conversion time is BOSC

× 96 cycles.

Figure 6-2 ADC Block Diagram
Figure 6-3 ADC Timing
VDD
VSS
ANCTR
BOSC
A/D interrupt request
AN11BUF-AN0BUF
ADIN0
ADIN1
ADIN2
ADIN3
ADIN4
ADIN5
ADIN6
ADIN7
ADIN8
ADIN9
ADIN10
ADIN11
M
U
X
Shift register for state information
Divider INC Interrupt
generated
Compare Data registers
8-bit x 12
128 64 32 16 8 4 2 1 1
ANNCH AN1CH
Storage of converted data
State
Reference
Clock
S/H
bit 7S/H
bit 7 6 5 4 32 1 0 Transfer
- Interrupt
- Write to
register
12 cycles
In continuous mode