M30833FJGP#U3 Renesas Electronics America, M30833FJGP#U3 Datasheet - Page 99

• Manufacturer Part Number: M30833FJGP#U3
• Description: IC M32C/83 MCU FLASH 100LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M32C/80r

Specifications of M30833FJGP#U3

• Core Processor: M32C/80
• Core Size: 16/32-Bit
• Speed: 32MHz
• Connectivity: CAN, I²C, IEBus, SIO, UART/USART
• Peripherals: DMA, WDT
• Number Of I /o: 85
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 31K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 26x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LQFP
• Package: 100LQFP
• Family Name: R8C
• Maximum Speed: 32 MHz
• Operating Supply Voltage: 5 V
• Data Bus Width: 16 Bit
• Number Of Programmable I/os: 87
• Interface Type: UART
• On-chip Adc: 26-chx10-bit
• On-chip Dac: 2-chx8-bit
• Number Of Timers: 11
• For Use With: R0K330879S001BE - KIT DEV RSK M32C/87R0K330879S000BE - KIT DEV RSK M32C/87
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

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R
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3
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2
Figure 8.9 Main Clock Circuit Connection
0
8.1.1 Main Clock
1
C
9
3 .
B
8 /
Main clock oscillation circuit generates the main clock. The main clock becomes a clock source for the
CPU clock and peripheral function clock.
The main clock oscillation circuit is configured by connecting an oscillator or resonator between the X
and X
oscillation circuit in stop mode to reduce power consumption. The externally generated clock can be input
to the X
connection. Circuit constants vary with each oscillator. Use the circuit constant recommended by each
oscillator manufacturer.
The main clock divided-by-eight becomes the CPU clock after reset.
To reduce power consumption, set the CM05 bit in the CM0 register to "1" (main clock stopped) after
switching the CPU clock source to the sub clock or on-chip oscillator clock. In this case, X
"H". X
clock is input to the X
clock operation externally if necessary.
All clocks, including the main clock, stop in stop mode. Refer to 8.5 Power Consumption Control for details.
0
1
3
0
3
J
G
4
a
0 -
o r
n
OUT
IN
(Built-in Feedback Resistor)
3 .
1
u
IN
3
, 1
p
is pulled up by X
1
pins. The circuit has a built-in feedback resistor. The feedback resistor is separated from the
pin in the main clock oscillation circuit. Figure 8.9 shows an example of a main clock circuit
(
2
M
0
Microcomputer
NOTE:
0
3
6
2
1. Place a damping resistor if required. Resistance values vary depending on the oscillator setting.
C
8 /
Use values recommended by each oscillator manufacturer.
Place a feedback resistor between X
placing the resistor externally.
Page 74
X
, 3
V
OUT
X
IN
SS
IN
M
pin, the main clock does not stop even if the CM05 bit is set to "1". Terminate main
3
2
OUT
C
Oscillator
f o
Rd
8 /
4
via the feedback resistor which remains on. When an externally generated
3
(1)
8
) T
8
C
C
OUT
IN
IN
and X
(Built-in Feedback Resistor)
OUT
Microcomputer
if the oscillator manufacturer recommends
X
OUT
X
IN
Open
V
V
CC
SS
External Clock
8. Clock Generation Circuit
OUT
becomes
IN