R5F21191SP#U0 Renesas Electronics America, R5F21191SP#U0 Datasheet - Page 209

• 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
17.4.4
Table 17.5
Status Register Bit FMR0 Register Bit
SR0 (D0)
SR1 (D1)
SR2 (D2)
SR3 (D3)
SR4 (D4)
SR5 (D5)
SR6 (D6)
SR7 (D7)
• D0 to D7: Indicate the data bus which is read when the read status register command is executed.
• Bits FMR07 (SR5) to FMR06 (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 commands
17.4.4.1
17.4.4.2
17.4.4.3
cannot be accepted.
The status register indicates the operating status of the flash memory and whether an erase or
program operation has completed normally or in error. Status of the status register can be read by bits
FMR00, FMR06, and FMR07 in the FMR0 register.
Table 17.5 lists the Status Register Bits.
In EW0 mode, the status register can be read in the following cases:
The sequencer status bits indicate the operating status of the flash memory. SR7 is set to 0 (busy)
during/auto-programming and auto-erasure, and is set to 1 (ready) at the same time the operation
completes.
Refer to 17.4.5 Full Status Check.
Refer to 17.4.5 Full Status Check.
•
•
Apr 14, 2006
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 Register
Sequencer Status (Bits SR7 and FMR00)
Erase Status (Bits SR5 and FMR07)
Program Status (Bits SR4 and FMR06)
Status Register Bits
−
−
−
−
FMR06
FMR07
−
FMR00
Page 192 of 233
Reserved
Reserved
Reserved
Reserved
Program status Completed
Erase status
Reserved
Sequencer
status
Status Name
−
−
−
−
normally
Completed
normally
−
Busy
0
Description
−
−
−
−
Error
Error
−
Ready
1
17. Flash Memory Version
−
−
−
−
0
0
−
1
Value after
Reset