R5F21238DFP#U0 Renesas Electronics America, R5F21238DFP#U0 Datasheet - Page 423

• Manufacturer Part Number: R5F21238DFP#U0
• Description: IC R8C/23 MCU FLASH 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/23r

Specifications of R5F21238DFP#U0

• Core Size: 16/32-Bit
• Program Memory Size: 64KB (64K x 8)
• Peripherals: POR, Voltage Detect, WDT
• Core Processor: R8C
• Speed: 20MHz
• Connectivity: CAN, I²C, LIN, SIO, SSU, UART/USART
• Number Of I /o: 41
• Program Memory Type: FLASH
• Ram Size: 3K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-LQFP
• No. Of I/o's: 41
• Ram Memory Size: 3KB
• Cpu Speed: 20MHz
• No. Of Timers: 4
• Digital Ic Case Style: LQFP
• Embedded Interface Type: CAN, I2C, UART
• Rohs Compliant: Yes
• Cpu Family: R8C
• Device Core Size: 16b
• Frequency (max): 20MHz
• Interface Type: I2C/UART
• Total Internal Ram Size: 3KB
• # I/os (max): 41
• Number Of Timers - General Purpose: 5
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 3V
• On-chip Adc: 12-chx10-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 48
• Package Type: LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: RCDK8C - KIT DEV EVAL FOR CAN R8C/23R0K521237S000BE - KIT DEV RSK R8C/23R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
• Eeprom Size: -
• Lead Free Status / Rohs Status: Compliant

R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
Figure 19.2
A/D Control Register 0
b7 b6 b5 b4 b3 b2 b1 b0
NOTES:
1.
2.
3.
4.
If the ADCON0 register is rew ritten during A/D conversion, the conversion result is indeterminate.
When changing A/D operation mode, set the analog input pin again.
Set øAD frequency to 10 MHz or below .
The analog input pin can be select according to a combination of the CH0 to CH2 bits and the ADGSEL0 bit.
CH2 to CH0
000b
001b
010b
011b
100b
101b
110b
111b
ADCON0 Register
ADGSEL0 = 0
Bit Symbol
ADGSEL0
ADCON0
ADCAP
Symbol
(1)
ADST
CKS0
Page 401 of 501
CH0
CH1
CH2
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
MD
Analog input pin select bit
A/D operation mode select
bit
A/D input group select bit
A/D conversion automatic
start bit
A/D conversion start flag
Frequency select bit 0
(2)
ADGSEL0 = 1
Do not set
Address
Bit Name
00D6h
AN10
AN11
AN8
AN9
(4)
Refer to (4)
0 : On-shot mode
1 : Repeat mode
0 : Selects port P0 group (AN0 to AN7)
1 : Selects port P1 group (AN8 to AN11)
0 : Starts in softw are trigger (ADST bit)
1 : Starts in timer RD
0 : Disables A/D conversion
1 : Starts A/D conversion
[When CKS1 in ADCON1 register = 0]
0 : Select f4
1 : Select f2
[When CKS1 in ADCON1 register = 1]
0 : Select f1
1 : Select fOCO-F
(complementary PWM mode)
(3)
After Reset
Function
00h
19. A/D Converter
RW
RW
RW
RW
RW
RW
RW
RW
RW