R5F21236JFP Renesas Electronics America, R5F21236JFP Datasheet - Page 453
R5F21236JFP
Manufacturer Part Number
R5F21236JFP
Description
MCU 3/5V 32K+2K 48-LQFP
Manufacturer
Renesas Electronics America
Series
M16C™ M16C/R8C/Tiny/23r
Datasheet
1.R5F21237DFPU0.pdf
(551 pages)
Specifications of R5F21236JFP
Core Processor
R8C
Core Size
16-Bit
Speed
20MHz
Connectivity
CAN, I²C, LIN, SIO, SSU, UART/USART
Peripherals
POR, Voltage Detect, WDT
Number Of I /o
41
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2K 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
For Use With
RCDK8C - KIT DEV EVAL FOR CAN R8C/23R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
20.4.3
Table 20.4
Read Array
Read Status Register
Clear Status Register
Program
Block Erase
20.4.3.1
20.4.3.2
20.4.3.3
SRD: Status register
WA: Write address (Ensure the address specified in the first bus cycle is the same address as the write
WD: Write data (8 bits)
BA: Given block address
×:
Software commands are described below. Read or write commands and data from or to in 8-bit units.
The read array command reads the flash memory.
The MCU enters read array mode by writing FFh in the first bus cycle. If entering the read address after the
following bus cycles, the content of the specified address can be read in 8-bit units.
Since the MCU remains in read array mode until another command is written, the contents of multiple
addresses can be read continuously.
In addition, the MCU enters read array mode after a reset.
The read status register command reads the status register.
If writing 70h in the first bus cycle, the status register can be read in the second bus cycle. (Refer to 20.4.4
Status Registers) When reading the status register, specify an address in the user ROM area.
Do not execute this command in EW1 mode.
The MCU remains in read status register mode until the next read array command is written.
The clear status register command sets the status register to 0.
If writing 50h in the first bus cycle, the FMR06 to FMR07 bits in the FMR0 register and SR4 to SR5 in the
status register will be set to 0.
Command
address specified in the second bus cycle.)
Any specified address in the user ROM area
Software Commands
Read Array Command
Read Status Register Command
Clear Status Register Command
Software Commands
data (D7 to D0)
Page 431 of 501
Mode
Write
Write
Write
Write
Write
First Bus Cycle
Address
WA
×
×
×
×
(D7 to D0)
Data
FFh
70h
50h
40h
20h
Mode
Read
Write
Write
Second Bus Cycle
Address
WA
BA
×
20. Flash Memory
(
D7 to D0)
Data
SRD
D0h
WD
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