R5F21294SNSP#U0 Renesas Electronics America, R5F21294SNSP#U0 Datasheet - Page 380

• Manufacturer Part Number: R5F21294SNSP#U0
• Description: MCU 3/5V 16K+2K 20PIN-SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/29r

Specifications of R5F21294SNSP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 13
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/28 Group, R8C/29 Group
Rev.2.10
REJ09B0279-0210
19.4.5
Table 19.6
NOTE:
FMR07 (SR5) FMR06 (SR4)
1
1
0
1. The MCU enters read array mode when FFh is written in the second bus cycle of these commands.
FMR0 Register (Status
When an error occurs, bits FMR06 to FMR07 in the FMR0 register are set to 1, indicating the occurrence of an
error. Therefore, checking these status bits (full status check) can be used to determine the execution result.
Table 19.6 lists the Errors and FMR0 Register Status. Figure 19.16 shows the Full Status Check and Handling
Procedure for Individual Errors.
At the same time, the command code written in the first bus cycle is disabled.
Register) Status
Sep 26, 2008
Full Status Check
Errors and FMR0 Register Status
1
0
1
Page 361 of 441
Command
sequence
error
Erase error
Program error
Error
• When a command is not written correctly
• When invalid data other than that which can be written
• When the program command or block erase command
• When an address not allocated in flash memory is input
• When attempting to erase the block for which rewriting
• When an address not allocated in flash memory is input
• When attempting to write to a block for which rewriting
• When the block erase command is executed but auto-
• When the program command is executed but not auto-
in the second bus cycle of the block erase command is
written (i.e., other than D0h or FFh)
is executed while rewriting is disabled by the FMR02 bit
in the FMR0 register, or the FMR15 or FMR16 bit in the
FMR1 register.
during erase command input
is disabled during erase command input.
during write command input.
is disabled during write command input.
erasure does not complete correctly
programming does not complete.
Error Occurrence Condition
(1)
19. Flash Memory