R5F21334CNFP#U0 Renesas Electronics America, R5F21334CNFP#U0 Datasheet - Page 189

• Manufacturer Part Number: R5F21334CNFP#U0
• Description: MCU 1KB FLASH 16K ROM 32-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/33Cr

Specifications of R5F21334CNFP#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: 27
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/33C Group
REJ09B0570-0100 Rev.1.00 Dec. 14, 2009
Page 159 of 589
12. ID Code Areas
The ID code areas are used to implement a function that prevents the flash memory from being rewritten in standard
serial I/O mode. This function prevents the flash memory from being read, rewritten, or erased.
12.1
Figure 12.1
The ID code areas are assigned to 0FFDFh, 0FFE3h, 0FFEBh, 0FFEFh, 0FFF3h, 0FFF7h, and 0FFFBh of the
respective vector highest-order addresses of the fixed vector table. Figure 12.1 shows the ID Code Areas.
Overview
ID Code Areas
0FFDFh to 0FFDCh
0FFE3h to 0FFE0h
0FFE7h to 0FFE4h
0FFEBh to 0FFE8h
0FFEFh to 0FFECh
0FFF3h to 0FFF0h
0FFF7h to 0FFF4h
0FFFBh to 0FFF8h
0FFFFh to 0FFFCh
Address
ID code areas
OFS
ID1
ID2
ID3
ID4
ID5
ID6
ID7
Watchdog timer, oscillation stop detection,
voltage monitor 1, voltage monitor 2
Undefined instruction vector
Overflow vector
BRK instruction vector
Address match vector
Single step vector
Address break vector
Reset vector
4 bytes
(Reserved)
12. ID Code Areas