R5F212A8SNFA#U0 Renesas Electronics America, R5F212A8SNFA#U0 Datasheet - Page 534

• Manufacturer Part Number: R5F212A8SNFA#U0
• Description: IC R8C/2A MCU FLASH 64K 64-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/2Ar

Specifications of R5F212A8SNFA#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, PWM, Voltage Detect, WDT
• Number Of I /o: 55
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 3K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 64-LQFP
• For Use With: R0K5212D8S001BE - KIT STARTER FOR R8C/2DR0K5212D8S000BE - KIT DEV FOR R8C/2D
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/2A Group, R8C/2B Group
Rev.2.00
REJ09B0324-0200
20.5
20.5.1
Table 20.7
VCC,VSS
VREF
RESET
P4_6/XIN
P4_7/XOUT
P4_3/XCIN
P4_4/XCOUT
P0_0 to P0_7
P1_0 to P1_7
P2_0 to P2_7
P3_0 to P3_7
P4_5
P5_0 to P5_4
P6_0 to P6_5
P8_0 to P8_6
P6_6
P6_7
MODE
In standard serial I/O mode, the user ROM area can be rewritten while the MCU is mounted on-board by using a
serial programmer which is suitable for the MCU.
There are three types of Standard serial I/O modes:
This MCU uses Standard serial I/O mode 2 and Standard serial I/O mode 3.
Refer to Appendix 2. Connection Examples between Serial Writer and On-Chip Debugging Emulator.
Contact the manufacturer of your serial programmer for details. Refer to the user’s manual of your serial
programmer for instructions on how to use it.
Table 20.7 lists the Pin Functions (Flash Memory Standard Serial I/O Mode 2), Table 20.8 lists the Pin Functions
(Flash Memory Standard Serial I/O Mode 3), and Figure 20.17 shows Pin Connections for Standard Serial I/O
Mode 3.
After processing the pins shown in Table 20.8 and rewriting the flash memory using the programmer, apply “H” to
the MODE pin and reset the hardware to run a program in the flash memory in single-chip mode.
•
•
•
The ID code check function determines whether the ID codes sent from the serial programmer and those written
in the flash memory match (refer to 20.3 Functions to Prevent Rewriting of Flash Memory).
Standard serial I/O mode 1 ............Clock synchronous serial I/O used to connect with a serial programmer
Standard serial I/O mode 2 ............Clock asynchronous serial I/O used to connect with a serial programmer
Standard serial I/O mode 3 ............Special clock asynchronous serial I/O used to connect with a serial
Standard Serial I/O Mode
Nov 26, 2007
Pin
ID Code Check Function
Pin Functions (Flash Memory Standard Serial I/O Mode 2)
Power input
Reference voltage input I
Reset input
P4_6 input/clock input
P4_7 input/clock output I/O
P4_3 input/clock input
P4_4 input/clock output I/O
Input port P0
Input port P1
Input port P2
Input port P3
Input port P4
Input port P5
Input port P6
Input port P8
TXD output
RXD input
MODE
Page 512 of 580
Name
programmer
I
I
I
I
I
I
I
I
I
I
I
O
I
I
I/O
Apply the voltage guaranteed for programming and
erasure to the VCC pin and 0 V to the VSS pin.
Reference voltage input pin to A/D converter and D/A
converter.
Reset input pin.
Connect a ceramic resonator or crystal oscillator
between the XIN and XOUT pins.
Connect crystal oscillator between pins XCIN and
XCOUT.
Input “H” or “L” level signal or leave the pin open.
Serial data output pin.
Serial data input pin.
Input “L” level signal.
Description
20. Flash Memory