M30263F6AFP#U3 Renesas Electronics America, M30263F6AFP#U3 Datasheet - Page 76
![MCU 3/5V 48K I TEMP PB-FREE 42-S](/photos/28/61/286144/42-ssop_sml.jpg)
M30263F6AFP#U3
Manufacturer Part Number
M30263F6AFP#U3
Description
MCU 3/5V 48K I TEMP PB-FREE 42-S
Manufacturer
Renesas Electronics America
Series
M16C™ M16C/Tiny/26r
Datasheet
1.M30260F3AGPU5A.pdf
(354 pages)
Specifications of M30263F6AFP#U3
Core Processor
M16C/60
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, IEBus, SIO, UART/USART
Peripherals
DMA, PWM, Voltage Detect, WDT
Number Of I /o
33
Program Memory Size
48KB (48K 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 10x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
42-SSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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7.7 System Clock Protective Function
7.8 Oscillation Stop and Re-oscillation Detect Function
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Table 7.8.1. Specification Overview of Oscillation Stop and Re-oscillation Detect Function
0
6
Oscillation stop detectable clock and
frequency bandwidth
Enabling condition for oscillation stop,
re-oscillation detection function
Operation at oscillation stop,
re-oscillation detection
2
9
When the main clock is selected for the CPU clock source, this function protects the clock from modifica-
tions in order to prevent the CPU clock from becoming halted by run-away.
If the PM21 bit in the PM2 register is set to “1” (clock modification disabled), the following bits are protected
against writes:
• CM02, CM05, and CM07 bits in CM0 register
• CM10, CM11 bits in CM1 register
• CM20 bit in CM2 register
• All bits in PLC0 register
Before the system clock protective function can be used, the following register settings must be made while
the CM05 bit in the CM0 register is “0” (main clock oscillating) and CM07 bit is “0” (main clock selected for
the CPU clock source):
(1) Set the PRC1 bit in the PRCR register to “1” (enable writes to PM2 register).
(2) Set the PM21 bit in the PM2 register to “1” (disable clock modification).
(3) Set the PRC1 bit in the PRCR register to “0” (disable writes to PM2 register).
Do not execute the WAIT instruction when the PM21 bit is set to “1”.
The oscillation stop and re-oscillation detect function allows the detection of main clock oscillation stop and
reoscillation. At oscillation stop or re-oscillation detection, reset or oscillation stop, re-oscillation detection
interrupt are generated. Depending on the CM27 bit in the CM2 register. The oscillation stop detection
function can be enabled and disabled by the CM20 bit in the CM2 register. Table 7.8.1 lists a specification
overview of the oscillation stop and re-oscillation detect function.
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B
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0
2
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page 57
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•Reset occurs (when the CM27 bit is set to "0")
•Oscillation stop, re-oscillation detection interrupt occurs(when the CM27 bit is
f(X
Set the CM20 bit to “1”(enable)
set to "1")
1
6
IN
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Specification
7. Clock Generation Circuit
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