R5F21122FP#U0 Renesas Electronics America, R5F21122FP#U0 Datasheet - Page 170

• 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
17.5 Standard Serial I/O Mode
In standard serial I/O mode, the user ROM area can be rewritten while the microcomputer is mounted on-
board by using a serial programmer suitable for this microcomputer. Standard serial I/O mode has stan-
dard serial I/O mode 1 of the clock synchronous serial and standard serial I/O mode 2 of the clock
asynchronous serial. Refer to "Appendix 2 Connecting Examples for Serial Writer and On-chip Debug-
ging Emulator".For more information about serial programmers, contact the manufacturer of your serial
programmer. For details on how to use, refer to the user’s manual included with your serial programmer.
Table 17.7 lists pin functions (flash memory standard serial I/O mode). Figures 17.13 to 17.15 show pin
connections for standard serial I/O mode.
17.5.1 ID Code Check Function
This function determines whether the ID codes sent from the serial programmer and those written in
the flash memory match (refer to Section 17.3, “Functions to Prevent Flash Memory from Rewriting”).
Jan 27, 2006
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17.5 Standard Serial I/O Mode