R5F21162SP#U0 Renesas Electronics America, R5F21162SP#U0 Datasheet - Page 225

• 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
Figure 18.12
18.4.3.5
If writing ”20h” in the first bus cycle and “D0h
and an auto erase operation (erase and verify) will start.
The FMR00 bit in the FMR0 register can determine whether auto erasing has completed.
The FMR00 bit is set to “0” during auto erasing and set to “1” when auto erasing completes.
The FMR07 bit in the FMR0 register can determine the result of auto erasing after auto erasing has
completed. (Refer to 18.4.5 Full Status Check .)
When the FMR02 bit in the FMR0 register is set to “0” (disable rewriting) or the FMR02 bit is set to “1”
(rewrite enables) and the FMR15 bit in the FMR1 register is set to “1” (disable rewriting), the block
erase command on Block 0 is not acknowledged. When the FMR16 bit is set to “1” (disable rewriting),
the block erase command on Block 1 is not acknowledged.
Figure 18.12 shows the Block Erase Command (When Not Using Erase-Suspend Function). Figure
18.13 shows the Block Erase Command (When Using Erase-Suspend Function).
In EW1 mode, do not execute this command on any address at which the rewrite control program is
allocated.
In EW0 mode, the microcomputer enters read status register mode at the same time auto erasing
starts and the status register can be read. The status register bit 7 (SR7) is set to “0” at the same time
auto erasing starts and set back to “1” when auto erasing completes. In this case, the microcomputer
remains in read status register mode until the read array command is written next.
Jan 19, 2006
Block Erase
Block Erase Command (When Not Using Erase-Suspend Function)
Page 210 of 254
Write the command code ‘20h’
Write ‘D0h’ to the given block
Block erase completed
Full status check
FMR00=1?
address
Start
”
to the given address of a block in the second bus cycle,
Yes
No
18. Flash Memory Version