
A/D CONVERTER
11-4
11
32192/32195/32196 Group Hardware Manual
Rev.1.10 REJ09B0123-0110 Apr.06.07
11.1 Outline of A/D Converter
Table 11.1.1 Outline of the A/D Converter (2/2)
Item
Description
Conversion mode
A/D Conversion, comparator mode
Operation mode
Single mode, Scan one shot mode, Scan continuous mode
Conversion start trigger
Software start
Started by setting the A/D conversion start bit to "1"
Hardware start
A/D0 Converter MJT (input event bus 2), MJT (input event bus 3),
MJT (output event bus 3) and MJT (TIN23)
Conversion
During single mode
Slow mode
Normal speed
598 x BCLK
14.95s
speed
(When sample-and-hold disabled/
Double speed
346 x BCLK
8.65s
(Note 1)
When normal sample-and-hold enabled)
Fast mode
Normal speed
262 x BCLK
6.55s
(Note 2)
Double speed
178 x BCLK
4.45s
During single mode
Slow mode
Normal speed
382 x BCLK
9.55s
(When fast sample-and-hold enabled)
Double speed
202 x BCLK
5.05s
Fast mode
Normal speed
190 x BCLK
4.75s
Double speed
106 x BCLK
2.65s
During comparator mode
Slow mode
Normal speed
94 x BCLK
2.35s
Double speed
58 x BCLK
1.45s
Fast mode
Normal speed
46 x BCLK
1.15s
Double speed
34 x BCLK
0.85s
Sample-and-hold function
Sample-and-hold function can be enabled or disabled as necessary.
Simultaneous
When Sample-and-hold function is effective, 2 channel simultaneous sampling function can be
sampling function
selected.
A/D disconnection
Influences of the analog input voltage leakage from any preceding channel during scan detection
assist function
mode operation are suppressed.
Interrupt request
Generated when A/D conversion (single mode operation, single-shot scan operation or one cycle of
generation function
continuous operation) or comparate operation is completed.
DMA transfer request
Generated when A/D conversion (single mode operation, single-shot scan operation or one cycle of
generation function
continuous operation) or comparate operation is completed.
Note 1: Condition for stamdard value : f(XIN)=20MHz, VCCE=VCCBUS=VDDE=AVCC0=5.12V, VCCER=3.3V±0.3V,
Ta=-40°C to +105°C, 2BCLK mode
Note 2: The conversion accuracy stipulated here refers to that of the microcomputer alone, with influences of the power supply
wiring and noise on the board not taken into account.