R5F21236KFP#U0 Renesas Electronics America, R5F21236KFP#U0 Datasheet - Page 461

• Manufacturer Part Number: R5F21236KFP#U0
• Description: IC R8C/23 MCU FLASH 48LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/23r

Specifications of R5F21236KFP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: CAN, I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, Voltage Detect, WDT
• Number Of I /o: 41
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 48-LQFP
• For Use With: RCDK8C - KIT DEV EVAL FOR CAN R8C/23R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
20.5
20.5.1
Table 20.7
VCC,VSS
RESET
P4_6/XIN
P4_7/XOUT
P0_0 to P0_7
P1_0 to P1_7
P2_0 to P2_7
P3_0, P3_1,
P3_3 to P3_5,
P3_7
P4_2, P4_5
P6_0 to P6_5
MODE
P6_6
P6_7
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 applicable 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 serial programmer. Refer to the user’s manual of your
serial programmer for details 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), Figure 20.17 shows Pin Connections for Standard Serial I/O Mode 3.
After processing the pins shown in Table 20.8 and rewriting a flash memory using a writer, apply “H” to the MODE
pin and reset a hardware if a program is operated on 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 programmer
Pin
Standard Serial I/O Mode
ID Code Check Function
Pin Functions (Flash Memory Standard Serial I/O Mode 2)
Power input
Reset input
P4_6 input/clock input
P4_7 input/clock output
Input port P0
Input port P1
Input port P2
Input port P3
Input port P4
Input port P6
MODE
TXD output
RXD input
Page 439 of 501
Name
I/O
I/O
O Serial data input pin.
I
I
I
I
I
I
I
I
I
I
Apply the voltage guaranteed for programming and
erasure to the VCC pin and 0 V to the VSS pin.
Reset input pin.
Connect a ceramic resonator or crystal oscillator
between the XIN and XOUT pins.
Input “H” or “L” level signal or leave the pin open.
Input “H” or “L” level signal or leave the pin open.
Input “H” or “L” level signal or leave the pin open.
Input “H” or “L” level signal or leave the pin open.
Input “H” or “L” level signal or leave the pin open.
Input “H” or “L” level signal or leave the pin open.
Input “L”.
Serial data output pin.
Description
20. Flash Memory