M30262F8GP#U7 Renesas Electronics America, M30262F8GP#U7 Datasheet - Page 202

• Manufacturer Part Number: M30262F8GP#U7
• Description: IC M16C/TINY MCU FLASH 48LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/Tiny/26r

Specifications of M30262F8GP#U7

• Core Processor: M16C/60
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, IEBus, SIO, UART/USART
• Peripherals: DMA, WDT
• Number Of I /o: 38
• Program Memory Size: 64KB (64K 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 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

194
CPU Rewrite Mode (Flash Memory Version)
Figure 1.20.2c. Shifting to the low power dissipation mode flowchart
Note 1: For flash memory reset bit to be set to 1 , the user needs to write a 0 and then a 1 to it in succession.
Note 2: Before the count source for BCLK can be changed from X
Note 3: Make a waiting time for 10 µs by software.
Preliminary Specifications Rev. 0.9
Specifications in this manual are tentative and subject to change.
(Subsequent operations are executed by control
Transfer the program to be executed in the low
power dissipation mode, to the internal RAM.
Jump to transferred control program in RAM
When it is not this procedure, it is not enacted in 1 . This is necessary to ensure that no interrupt or DMA
transfer will be executed during the interval.
the count source is going to be switched must be oscillating stably.
In this waiting time, do not access flash memory.
program in this RAM)
Program in ROM
Start
*1
Renesas Technology Corp.
Wait time until the internal circuit stabilizes (10 µs)
(Note 3)
Set CPU rewrite mode select bit to 1
(by writing 0 and then 1 in succession)
Set flash memory reset bit to 1
(by writing 0 and then 1 in succession)(Note 1)
X
IN
IN
Set CPU rewrite mode select bit to 0
Set flash memory reset bit to 0
Switch the count source of BCLK.
X
Switch the count source of BCLK (Note 2)
to X
oscillating
IN
Process of low power dissipation mode
stop. (Note 2)
CIN
or vice versa, the clock to which
Program in RAM
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Wait until the X
End
*1
IN
has stabilized
M16C/26 Group