R5F21102DFP#U0 Renesas Electronics America, R5F21102DFP#U0 Datasheet - Page 158

• Manufacturer Part Number: R5F21102DFP#U0
• Description: IC R8C MCU FLASH 8K 32LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/10r

Specifications of R5F21102DFP#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: -40°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/10 Group
Rev.1.20 Jan 27, 2006
REJ09B0019-0120
Figure 17.3 FMR0 Register
Flash memory control register 0
b7 b 6 b 5 b 4 b 3 b 2 b 1 b 0
NOTES:
1. To set this bit to “1”, write “0” and then “1” in succession. Make sure no interrupts will occur before
2. To set this bit to “1”, write “0” and then “1” in succession when the FMR01 bit = 1. Make sure no
3. Write to this bit from a program in other than the flash memory.
4. This flag is set to “0” by executing the Clear Status command.
5. Effective when the FMR01 bit = 1 (CPU rewrite mode). If the FMR01 bit = 0, although the FMSTP bit
6. Use the bit process instruction to set the FMR01, FMR02 and FMSTP bits (Refer to “R8C/Tiny Series
writing “1” after writing “0”.
Set the microcomputer in read array mode before writing “0” to this bit.
interrupts will occur before writing “1” after writing “0”.
can be set to “1” by writing “1”, the flash memory is neither placed in low power mode nor initialized.
Software Manual”.
0
0
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B i t s y m b o l
F M R 0 0
F M R 0 1
F M R 0 2
F M S T P
FMR06
FMR07
( b 5 - b 4 )
S y m b o l
F M R 0
CPU rewrite mode select
bit
R Y / B Y s t a t u s f l a g
B l o c k 1 , 0 r e w r i t e e n a b l e
b i t
F l a s h m e m o r y s t o p b i t
Program status flag
Erase status flag
Reserved bit
(1, 6)
(2 , 6 )
B i t n a m e
A d d r e s s
0 1 B 7
(4)
1 6
(4)
(3 , 5 , 6 )
A f t e r r e s e t
0 0 0 0 0 0 0 1
0: Busy (being written or erased)
1: Ready
0: Disable CPU rewrite mode
1: Enable CPU rewrite mode
Set to “0”
0: Terminated normally
1: Terminated in error
0: Terminated normally
1: Terminated in error
0 : E n a b l e f l a s h m e m o r y o p e r a t i o n
1 : S t o p f l a s h m e m o r y o p e r a t i o n
0: Rewrite disabled
1: Rewrite enabled
( p l a c e d i n l o w p o w e r m o d e ,
f l a s h m e m o r y i n i t i a l i z e d )
2
F u n c t i o n
17.4 CPU Rewrite Mode
R W
R W
R W
R W
R W
RO
RO
RO