UPD78F0078GK-9ET-A Renesas Electronics America, UPD78F0078GK-9ET-A Datasheet - Page 231

• Manufacturer Part Number: UPD78F0078GK-9ET-A
• Manufacturer: Renesas Electronics America

Specifications of UPD78F0078GK-9ET-A

• Lead Free Status / Rohs Status: Supplier Unconfirmed

Notes 1. Set the A/D conversion time as follows.
Remark f
Address: FF80H After reset: 00H R/W
Symbol
ADM0
2. Expanded-specification products of PD780078 Subseries only.
3. Setting is prohibited because the A/D conversion time is less than 14 s.
4. Setting is prohibited because the A/D conversion time is less than 12 s.
5. The on-chip booster is provided to realize low-voltage operation. The circuit that generates the
• When operated at f
• When operated at f
reference voltage for boosting is controlled by ADCE0 and it takes 14 s for operation to stabilize after
it is started. Therefore, by waiting for at least 14 s to elapse before setting ADCS0 to 1 after ADCE0
has been set to 1, the conversion results are valid from the first result.
X
: Main system clock oscillation frequency
Other than above
ADCS0
ADCS0
ADCE0
EGA01
TRG0
FR02
7
0
1
0
1
0
0
0
1
1
1
0
0
1
1
0
1
Figure 13-3. Format of A/D Converter Mode Register 0 (ADM0)
Stop conversion operation.
Enable conversion operation.
Software start
Hardware start
Stop operation of boost reference voltage generator.
Enable operation of boost reference voltage generator.
EGA00
TRG0
FR01
6
0
0
1
0
0
1
0
1
0
1
X
X
Boost reference voltage generator for A/D converter circuit control
= 12 MHz (V
= 8.38 MHz (V
No edge detection
Falling edge detection
Rising edge detection
Both falling and rising edge detection
CHAPTER 13 A/D CONVERTER
FR02
FR00
5
0
1
0
0
1
0
User’s Manual U14260EJ4V0UD
DD
Software start/hardware start selection
144/f
120/f
96/f
72/f
60/f
48/f
Setting prohibited
DD
= 4.5 to 5.5 V):
A/D conversion operation control
FR01
Edge specification of external trigger signal
= 4.0 to 5.5 V): 14 s or more
X
X
X
X
4
X
X
FR00
Conversion time selection
3
17.1 s
14.3 s
11.4 s
8.5 s
7.1 s
5.7 s
12 s or more
f
X
= 8.38 MHz
EGA01
Note 3
Note 3
Note 3
Note 3
2
EGA00
Note 1
12.0 s
10.0 s
8.0 s
6.0 s
5.0 s
4.0 s
1
f
X
= 12 MHz
Note 5
Note 4
Note 4
Note 4
Note 4
Note 4
ADCE0
Note 2
0
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