R5F21257SNFP#U0 Renesas Electronics America, R5F21257SNFP#U0 Datasheet - Page 499

• Manufacturer Part Number: R5F21257SNFP#U0
• Description: IC R8C/25 MCU FLASH 52LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/25r

Specifications of R5F21257SNFP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, Voltage Detect, WDT
• Number Of I /o: 41
• Program Memory Size: 48KB (48K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.5K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 52-LQFP
• For Use With: R0K521256S000BE - KIT EVAL STARTER FOR R8C/25
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/24 Group, R8C/25 Group
Rev.3.00
REJ09B0244-0300
22. Notes on On-Chip Debugger
When using the on-chip debugger to develop and debug programs for the R8C/24 Group and R8C/25 Group take note
of the following.
Connecting and using the on-chip debugger has some special restrictions. Refer to the on-chip debugger manual for
details.
(1)
(2)
(3)
(4)
(5)
Some of the user flash memory and RAM areas are used by the on-ship debugger. These areas cannot be
Do not set the address match interrupt (registers AIER, RMAD0, and RMAD1 and fixed vector tables) in a
Debugging is available under the condition of supply voltage VCC = 2.7 to 5.5 V. Debugging with the on-chip
Do not access the related UART1 registers.
accessed by the user.
Refer to the on-chip debugger manual for which areas are used.
user system.
Do not use the BRK instruction in a user system.
debugger under less than 2.7 V is not allowed.
Feb 29, 2008
Page 480 of 485
22. Notes on On-Chip Debugger