R5F21191SP#U0 Renesas Electronics America, R5F21191SP#U0 Datasheet - Page 218

• Manufacturer Part Number: R5F21191SP#U0
• Description: IC R8C MCU FLASH 8K 20SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/19r

Specifications of R5F21191SP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SIO, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 13
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 4x1b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-SSOP
• For Use With: R0K521134S000BE - KIT EVAL STARTER FOR R8C/13R0E521174CPE10 - EMULATOR COMPACT R8C/18/19/1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/18 Group, R8C/19 Group
Rev.1.30
REJ09B0222-0130
Table 17.10
NOTES:
Mode
EW1 During
17.7.1.4
17.7.1.5
17.7.1.6
17.7.1.7
1. Do not use the address match interrupt while a command is executing because the vector of the
2. Do not use a non-maskable interrupt while block 0 is being automatically erased because the fixed
Write 0 before writing 1 when setting the FMR01, FMR02, or FMR11 bit to 1. Do not generate an
interrupt between writing 0 and 1.
In EW0 Mode, if the supply voltage drops while rewriting any block in which a rewrite control program
is stored, it may not be possible to rewrite the flash memory because the rewrite control program
cannot be rewritten correctly. In this case, use standard serial I/O mode.
Do not write additions to the already programmed address.
Do not enter stop mode or wait mode during erase-suspend.
address match interrupt is allocated in ROM.
vector is allocated in block 0.
auto-erasure
(erase- suspend
function enabled)
During
auto-erasure
(erase- suspend
function disabled)
During
auto-programming
(program suspend
function enabled)
During
auto-programming
(program suspend
function disabled)
Apr 14, 2006
Status
EW1 Mode Interrupts
How to Access
Rewriting User ROM Area
Entering Stop Mode or Wait Mode
Program
Page 201 of 233
Auto-erasure is suspended after
td(SR-ES) and interrupt handing is
executed. Auto-erasure can be
restarted by setting the FMR41 bit in
the FMR4 register to 0 (erase restart)
after interrupt handing completes.
Auto-erasure has priority and the
interrupt request acknowledgement
is put on standby. Interrupt handing
is executed after auto-erasure
completes.
Auto-programming is suspended
after td(SR-SUS) and interrupt
handing is executed.
Auto-programming can be restarted
by setting the FMR42 bit in the FMR4
register to 0 (program restart) after
interrupt handing completes.
Auto-programming has priority and
the interrupt request
acknowledgement is put on standby.
Interrupt handing is executed after
auto-programming completes.
When Maskable Interrupt Request is
Acknowledged
Once an interrupt request is
acknowledged, auto-programming or
auto-erasure is forcibly stopped
immediately and the flash memory is
reset. Interrupt handing starts after the
fixed period and the flash memory
restarts. Since the block during
auto-erasure or the address during
auto-programming is forcibly stopped,
the normal value may not be read.
Execute auto-erasure again and
ensure it completes normally.
Since the watchdog timer does not
stop during the command operation,
interrupt requests may be generated.
Reset the watchdog timer regularly
using the erase-suspend function.
Stop Detection and Voltage Monitor 2
Interrupt Request are Acknowledged
When Watchdog Timer, Oscillation
17. Flash Memory Version