M30245FCGP#U1 Renesas Electronics America, M30245FCGP#U1 Datasheet - Page 43

• Manufacturer Part Number: M30245FCGP#U1
• Description: IC M16C/24 MCU FLSH 128K 100LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/20r

Specifications of M30245FCGP#U1

• Core Processor: M16C/60
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: I²C, SPI, SSI, UART/USART, USB
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 82
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 10K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 100-LQFP
• Package: 100LQFP
• Family Name: R8C
• Maximum Speed: 16 MHz
• Operating Supply Voltage: 3.3 V
• Data Bus Width: 16 Bit
• Number Of Programmable I/os: 82
• Interface Type: USB/UART/I2C/SPI
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 5
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

M30245 Group
Figure 1.21.
Rev.2.00
REJ03B0005-0200
System clock control registers
Figure 1.21 shows the system clock control registers 0 and 1.
Oct 16, 2006
Clock control registers 0 and 1
System clock control register 0 (Note 1)
System clock control register 1 (Note 1)
b7
b7
b6
b6
b5
b5
page 41 of 264
b4
b4
0
b3
b3
0
b2
b2
0
b1
b1
0 0
0
b0
b0
Note 1: Set bit "0" of the protect register (address 000A
Note 2: This bit changes to "1" when shifting from high-speed/medium speed mode to stop mode an
Note 3: Can be selected when bit 6 of the system clock control register 0 (address 0006
Note 4: If this bit is set to "1", X
Note 1: Set bit 0 of the protect register (address 000A
Note 2: Changes to "1" when changing to Stop mode and Reset.
Note 3: When entering power saving mode, main clock is stopped using this bit. When returning from
Note 4: When inputting external clock, only clock oscillation buffer is stopped and clock input is
Note 5: If this bit is set to "1", X
Note 6: This bit changes to "1" when changing from high-speed/medium mode to stop mode and at
Note 7: Set Port Xc select bit (CM04) to "1" and stabilize the sub clock oscillating before setting to
Note 8: fc32 is not included. Do not set to "1" when using low-speed or low power dissipation mode.
CM10
Reserved bit
CM15
CM16
CM17
Bit Symbol
Bit Symbol
CM02
CM03
CM04
CM05
CM06
CM07
Symbol
Reserved bit
CM0
at reset. When shifting from low-speed/low power dissipation mode to stop mode, the value
before stop mode is retained.
"1", divide mode is fixed at 8.
X
Symbol
CM1
CIN
stop mode and operating in X
by itself, set system clock select bit (CM07) to "1" before setting this bit to "1".
acceptable.
so X
reset. When shifting from low-speed/low power dissipation mode to stop mode, the value
before stop mode is retained.
this bit from "0" to "1". Do not write to both bits at the same time. Also, set the main clock
stop bit (CM05) to "0" and stabilize the main clock oscillating before setting this bit from '1"
to "0".
and Xc
IN
becomes pulled up to X
X
select bit (Note 2)
Main clock division select
bit 1 (Note 3)
OUT
All clock stop control bit
(Note 4)
WAIT peripheral function
clock stop bit
X
select bit (Note 2)
Port Xc select bit
Main clock (X
stop bit (Note 3, 4, 5)
Main clock division select
bit 0 (Note 6)
System clock select bit
(Note 7)
IN
CIN
-X
become high impedance state.
OUT
-X
COUT
Bit Name
Bit Name
drive capacity
OUT
OUT
drive capacity
becomes "H" and the built-in feedback resistor is cut off.
IN
becomes "H". The built-in feedback resist o r remains connected,
-X
Address
IN
Address
0006
OUT
OUT
0007
, set this bit to "0". When main clock oscillation is operating
)
("H") using the feedback resistor.
16
16
0 : Clock on
1 : All clocks off (stop mode)
Always set to "0"
0 : LOW
1 : HIGH
b7 b6
0 0 : No division mode
0 1 : Divide-by-2 mode
1 0 : Divide-by-4 mode
1 1 : Divide-by-16 mode
Always set to "0"
0 : Do not stop in wait mode
1 : Stop in wait mode (Note 8)
0 : LOW
1 : HIGH
0 : I/O port
1 : X
0 : On
1 : Off
0 : CM16 and CM17 valid
1 : Divide-by-8 mode
0 : X
1 : X
16
16
) to "1" before writing to this register.
) to "1" before writing to this register.
CIN
IN
CIN
, X
-X
, X
Function
Function
OUT
COUT
COUT
When reset
When reset
generation
48
20
16
16
16
) is "0". If
O O
R W
O O
O O
O O
O O
O O
R W
O O
O O
O O
O O
O O
O O
System Clock