R5F21238DFP#U0 Renesas Electronics America, R5F21238DFP#U0 Datasheet - Page 458

• Manufacturer Part Number: R5F21238DFP#U0
• Description: IC R8C/23 MCU FLASH 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/23r

Specifications of R5F21238DFP#U0

• Core Size: 16/32-Bit
• Program Memory Size: 64KB (64K x 8)
• Peripherals: POR, Voltage Detect, WDT
• Core Processor: R8C
• Speed: 20MHz
• Connectivity: CAN, I²C, LIN, SIO, SSU, UART/USART
• Number Of I /o: 41
• Program Memory Type: FLASH
• Ram Size: 3K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-LQFP
• No. Of I/o's: 41
• Ram Memory Size: 3KB
• Cpu Speed: 20MHz
• No. Of Timers: 4
• Digital Ic Case Style: LQFP
• Embedded Interface Type: CAN, I2C, UART
• Rohs Compliant: Yes
• Cpu Family: R8C
• Device Core Size: 16b
• Frequency (max): 20MHz
• Interface Type: I2C/UART
• Total Internal Ram Size: 3KB
• # I/os (max): 41
• Number Of Timers - General Purpose: 5
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 3V
• On-chip Adc: 12-chx10-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 48
• Package Type: LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: RCDK8C - KIT DEV EVAL FOR CAN R8C/23R0K521237S000BE - KIT DEV RSK R8C/23R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
• Eeprom Size: -
• Lead Free Status / Rohs Status: Compliant

R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
20.4.4
Table 20.5
• D0 to D7: Indicates the data bus which is read when the read status register command is executed.
• The FMR07 (SR5) to FMR06 bits (SR4) are set to 0 by executing the clear status register command.
• When the FMR07 bit (SR5) or FMR06 bit (SR4) is set to 1, the program and block erase command
20.4.4.1
20.4.4.2
20.4.4.3
cannot be accepted.
The status register indicates the operating status of the flash memory and whether an erasing or programming
operation completes normally or in error. Status of the status register can be read by the FMR00, FMR06, and
FMR07 bits in the FMR0 register.
Table 20.5 lists the Status Register Bits.
In EW0 mode, the status register can be read in the following cases:
The sequencer status indicates operating status of the flash memory. SR7 = 0 (busy) during auto programming
and auto erasing, and is set to 1 (ready) at the same time the operation completes.
Refer to 20.4.5 Full Status Check.
Refer to 20.4.5 Full Status Check.
SR0 (D0)
SR1 (D1)
SR2 (D2)
SR3 (D3)
SR4 (D4)
SR5 (D5)
SR6 (D6)
SR7 (D7)
Register
Status
•
•
Bit
When a given address in the user ROM area is read after writing the read status register command
When a given address in the user ROM area is read after executing the program or block erase command
but before executing the read array command.
Status Registers
Sequencer Status (Bits SR7 and FMR00)
Erase Status (Bits SR5 and FMR07)
Program Status (Bits SR4 and FMR06)
Status Register Bits
Page 436 of 501
Register
FMR06
FMR07
FMR00
FMR0
Bit
−
−
−
−
−
Program status
Status Name
Erase status
Sequencer
Reserved
Reserved
Reserved
Reserved
Reserved
status
Completed
Completed
normally
normally
Busy
0
−
−
−
−
−
Description
Ready
Error
Error
1
−
−
−
−
−
20. Flash Memory
Reset
Value
after
−
−
−
−
0
0
−
1