R5F21162SP#U0 Renesas Electronics America, R5F21162SP#U0 Datasheet - Page 261

• Manufacturer Part Number: R5F21162SP#U0
• Description: IC R8C MCU FLASH 8K 20SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/16r

Specifications of R5F21162SP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SIO, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 13
• 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 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-SSOP
• For Use With: R0K521134S000BE - KIT EVAL STARTER FOR R8C/13
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/16 Group, R8C/17 Group
Rev.2.10
REJ09B0169-0210
20.8
20.8.1
Table 20.1
NOTES:
Mode
EW0 During automatic erasing Any interrupt can be used
20.8.1.1
20.8.1.2
20.8.1.3
1. Do not use the address match interrupt while the command is executed because the vector of the
2. Do not use the non-maskable interrupt while Block 0 is automatically erased because the fixed
Before entering CPU rewrite mode (EW0 mode), select 5MHz or below for the CPU clock using the
CM06 bit in the CM0 register and the CM16 to CM17 bits in the CM1 register. This usage note is not
needed for EW1 mode.
The following instructions cannot be used in EW0 mode because the flash memory internal data is
referenced: UND, INTO, and BRK instructions.
Table 20.1 lists the Interrupt in EW0 Mode and Table 20.2 lists the Interrupt in EW1 Mode.
address match interrupt is allocated on ROM.
vector is allocated Block 0.
Flash Memory Version
Automatic writing
Jan 19, 2006
CPU Rewrite Mode
Operating Speed
Instructions Disabled Against Use
Interrupts
Interrupt in EW0 Mode
Status
Page 246 of 254
by allocating a vector to
RAM
When maskable interrupt
request is acknowledged
Once an interrupt request is acknowledged,
the auto-programming or auto-erasing is
forcibly stopped immediately and resets the
flash memory. An interrupt process starts
after the fixed period and the flash memory
restarts. Since the block during the auto-
erasing or the address during the auto-
programming is forcibly stopped, the
normal value may not be read. Execute the
auto-erasing again and ensure the auto-
erasing is completed normally.
Since the watchdog timer does not stop
d u r i n g t h e c o m m a n d o p e r a t i o n , t h e
interrupt request may be generated. Reset
the watchdog timer regularly.
detection and voltage monitor 2 interrupt
When watchdog timer, oscillation stop
request are acknowledged
20. Precautions