R5F21122FP#U0 Renesas Electronics America, R5F21122FP#U0 Datasheet - Page 120

• Manufacturer Part Number: R5F21122FP#U0
• Description: IC R8C MCU FLASH 8K 32LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/12r

Specifications of R5F21122FP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: SIO, UART/USART
• Peripherals: LED, WDT
• Number Of I /o: 22
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 32-LQFP
• For Use With: R0K521134S000BE - KIT EVAL STARTER FOR R8C/13R0E521134EPB00 - KIT EMULATOR PROBE FOR PC7501R0E521134CPE00 - EMULATOR COMPACT R8C/13
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/12 Group
Rev.1.20
REJ09B0110-0120
Figure 14.4 ADCON0 Register and ADCON1 Registers in One-shot Mode
Table 14.2 One-shot Mode Specifications
Function
Start condition
Stop condition
Interrupt request generation timing End of A/D conversion
Input pin
Reading of result of A/D converter Read AD register
14.1 One-shot Mode
In one-shot mode, the input voltage on one selected pin is A/D converted once. Table 14.2 lists the
specifications of one-shot mode. Figure 14.4 shows the ADCON0 and ADCON1 registers in one-shot
mode.
Jan 27, 2006
A D c o n t r o l r e g i s t e r 0
A D c o n t r o l r e g i s t e r 1
b 7 b6 b 5 b4 b 3 b2 b 1 b 0
b7 b6 b5 b4 b3 b2 b1 b0
0
Item
N O T E S :
N O T E S :
1 . I f t h e A D C O N 1 r e g i s t e r i s r e w r i t t e n d u r i n g A / D c o n v e r s i o n , t h e c o n v e r s i o n r e s u l t i s i n d e t e r m i n a t e .
2 . T h e
3 . I f t h e V C U T b i t i s r e s e t f r o m “ 0 ” ( V r e f u n c o n n e c t e d ) t o “ 1 ” ( V r e f c o n n e c t e d ) , w a i t f o r 1 µ s o r m o r e b e f o r e s t a r t i n g A / D
1 . I f t h e A D C O N 0 r e g i s t e r i s r e w r i t t e n d u r i n g A / D c o n v e r s i o n , t h e c o n v e r s i o n r e s u l t i s i n d e t e r m i n a t e .
2 . W h e n c h a n g i n g A / D o p e r a t i o n m o d e , s e t a n a l o g i n p u t p i n a g a i n .
3 . T h i s b i t i s v a l i d w h e n t h e C K S 1 b i t i n t h e A D C O N 1 r e g i s t e r i s s e t t o “ 0 ” .
0
c o n v e r s i o n .
0
1
A D
0
f r e q u e n c y m u s t b e 1 0 M H z o r l e s s .
0
0
page 108 of 181
0
0
Input voltage on one pin selected by CH2 to CH0 bits is A/D converted once.
Set ADST bit to “1”
• Completion of A/D conversion (ADST bit is set to “0”)
• Set ADST bit to “0”
One of AN
( 1 )
( 1 )
Bit symbol
B i t s y m b o l
( b 2 - b 0 )
( b 6 - b 7 )
B I T S
C K S 1
V C U T
ADST
CKS0
C H 0
CH1
C H 2
MD
(b4)
(b5)
S y m b o l
A D C O N 0
Symbol
ADCON1
8 / 1 0 - b i t m o d e s e l e c t
b i t
F r e q u e n c y s e l e c t
b i t 1
V r e f c o n n e c t b i t
R e s e r v e d b i t
Reserved bit
0
Analog input pin select bit
AD operation mode select
bit
Frequency select bit 0
R e s e r v e d b i t
R e s e r v e d b i t
A / D c o n v e r s i o n s t a r t f l a g
to AN
(2)
(2 )
Bit name
B i t n a m e
7
, as selected
A d d r e s s
Address
0 0 D 6
00D7
(3 )
1 6
16
(3)
0 : 8 - b i t m o d e
1 : 1 0 - b i t m o d e
0 : CKS0 bit in ADCON0 register is valid
1 : f
1 : V r e f c o n n e c t e d
Set to “0”
Set to “0”
2
0 0 0 0 0 X X X
AD
Specification
A f t e r r e s e t
After reset
b2 b1 b0
0 0 0 : AN
0 0 1 : AN
0 1 0 : AN
0 1 1 : AN
1 0 0 : AN
1 0 1 : AN
1 1 0 : AN
1 1 1 : AN
0 : One-shot mode
0 : f
1 : f
0 : A / D c o n v e r s i o n d i s a b l e d
1 : A / D c o n v e r s i o n s t a r t e d
Set to “0”
S e t t o “ 0 ”
is selected
00
AD
AD
16
/4 is selected
/2 is selected
0
1
2
3
4
5
6
71
2
is selected
is selected
is selected
is selected
is selected
is selected
is selected
is selected
Function
F u n c t i o n
R W
RW
R W
R W
RW
RW
R W
R W
RW
R W
R W
R W
R W
R W
R W
14.1 One-shot Mode