M30800SFP-BL#U5 Renesas Electronics America, M30800SFP-BL#U5 Datasheet - Page 291

• Manufacturer Part Number: M30800SFP-BL#U5
• Description: MCU 3/5V 0K,PB-FREE 100-QFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/80r

Specifications of M30800SFP-BL#U5

• Core Processor: M16C/80
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SIO, UART/USART
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 45
• Program Memory Type: ROMless
• Ram Size: 10K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 10x10b, D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

M
R
R
e
E
1
v
J
6
Figure 30.3 Shifting to the low speed mode flowchart
1 .
0
C
9
0 .
8 /
B
0
Note 1: For flash memory power supply-OFF bit to be set to “1”, the user needs to write a “0” and then a “1” to it in
Note 2: Before the count source for BCLK can be changed from X
0
0
(Subsequent operations are executed by control
1
A
8
G
Transfer the program to be executed in the
Jump to transferred control program in RAM
u
7
o r
. g
low speed mode, to the internal RAM.
0 -
u
1
0
succession. 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.
p
0
, 2
0
2
0
program in this RAM)
0
Program in ROM
5
Page 278
Start
*1
f o
3
2
9
Set flash memory power supply-OFF bit to “1”
(by writing “0” and then “1” in succession)(Note 1)
X
IN
Set flash memory power supply-OFF bit to “0”
Wait time until the internal circuit stabilizes
(Set NOP instruction about twice)
Switch the count source of BCLK.
X
IN
oscillating
Switch the count source of BCLK (Note 2)
IN
to X
stop. (Note 2)
CIN
Process of low speed mode
or vice versa, the clock to which
Program in RAM
Wait until the X
End
*1
30. CPU Rewrite Mode
IN
has stabilized