UPD78F9221CS-CAC-A Renesas Electronics America, UPD78F9221CS-CAC-A Datasheet - Page 169
UPD78F9221CS-CAC-A
Manufacturer Part Number
UPD78F9221CS-CAC-A
Description
MCU 8BIT 2KB FLASH 20PIN
Manufacturer
Renesas Electronics America
Series
78K0S/Kx1+r
Datasheet
1.UPD78F9221MC-5A4-A.pdf
(418 pages)
Specifications of UPD78F9221CS-CAC-A
Core Processor
78K0S
Core Size
8-Bit
Speed
10MHz
Connectivity
LIN, UART/USART
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
15
Program Memory Size
2KB (2K x 8)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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(1) A/D converter mode register (ADM)
Address: FF80H
Symbol
ADM
This register sets the conversion time for analog input to be A/D converted, and starts/stops conversion.
ADM can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation clears this register to 00H.
Remarks 1. f
Note 1. Even when the ADCE = 0 (comparator operation stopped), the A/D conversion operation starts if
FR2
0
1
1
1
0
0
1
0
ADCS
ADCS
ADCE
1
0
<7>
Note 1
Note 1
0
1
FR1
After reset: 00H
0
0
1
0
1
0
1
1
2. The conversion time refers to the total of the sampling time and the time from successively
the ADCS is set to 1. However, the first conversion data is out of the guaranteed-value range, so
ignore it.
comparing with the sampling value until the conversion result is output.
XP
Stops conversion operation
Starts conversion operation
Stops operation of comparator
Enables operation of comparator
FR0
: Oscillation frequency of clock to peripheral hardware
0
0
0
1
0
1
1
1
Figure 10-3. Format of A/D Converter Mode Register (ADM)
6
0
AV
4.5 V
AV
4.0 V
AV
2.85 V
AV
2.7 V
Reference
Range
Voltage
REF
REF
REF
REF
R/W
Note 2
FR2
5
CHAPTER 10 A/D CONVERTER
Sampling
12/f
24/f
96/f
48/f
48/f
24/f
176/f
88/f
Time
User’s Manual U16898EJ6V0UD
XP
XP
XP
XP
XP
XP
XP
XP
Note 3
FR1
A/D conversion operation control
Conversion
36/f
72/f
144/f
96/f
72/f
48/f
224/f
112/f
Comparator operation control
4
Time
XP
XP
XP
XP
XP
XP
XP
XP
Note 4
FR0
1.5 s
3.0 s
12.0 s
6.0 s
6.0 s
3.0 s
22.0 s
11.0 s
Sampling
Time
3
Note 3
f
XP
= 8 MHz
4.5 s
9.0 s
18.0 s
12.0 s
9.0 s
6.0 s
28.0 s
14.0 s
Conversion
Note6
Time
2
0
Note 4
1.2 s
2.4 s
9.6 s
4.8 s
4.8 s
Setting
prohibited
Note5
(2.4 s)
17.6 s
Setting
prohibited
Note5
(8.8 s)
Sampling
Time
1
0
f
Note 3
XP
= 10 MHz
3.6 s
7.2 s
14.4 s
9.6 s
7.2 s
Setting
prohibited
Note5
(4.8 s)
22.4 s
Setting
prohibited
Note5
(11.2 s)
Conversion
Time
ADCE
<0>
Note 4
167
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