M30263F6AFP#U3 Renesas Electronics America, M30263F6AFP#U3 Datasheet - Page 323
![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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19.5 Interrupts
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19.5.1 Reading address 00000
19.5.2 Setting the SP
19.5.3 The NMI Interrupt
19.5.4 Changing the Interrupt Generation Factor
2
9
0 .
B
2 /
Do not read the address 00000
reads interrupt information (interrupt number and interrupt request priority level) from the address
00000
If the address 00000
among the enabled interrupts is cleared to “0”. This causes a problem that the interrupt is canceled, or an
unexpected interrupt request is generated.
Set any value in the SP(USP, ISP) before accepting an interrupt. The SP(USP, ISP) is cleared to ‘0000
after reset. Therefore, if an interrupt is accepted before setting any value in the SP(USP, ISP), the pro-
gram may go out of control.
1. The NMI interrupt is invalid after reset. The NMI interrupt becomes effective by setting to “1” the PM24
2. The input level of the NMI pin can be read by accessing the P8_5 bit in the P8 register.
3. When selecting NMI function, stop mode cannot be entered into while input on the NMI pin is low. This
4. When selecting NMI function, do not go to wait mode while input on the NMI pin is low. This is because
5. When selecting NMI function, the low and high level durations of the input signal to the NMI pin must
6. When using the NMI interrupt for exiting stop mode, set the NDDR register to “FF
If the interrupt generate factor is changed, the IR bit in the interrupt control register for the changed
interrupt may inadvertently be set to “1” (interrupt requested). If you changed the interrupt generate factor
for an interrupt that needs to be used, be sure to clear the IR bit for that interrupt to “0” (interrupt not
requested).
“Changing the interrupt generate factor” referred to here means any act of changing the source, polarity
or timing of the interrupt assigned to each software interrupt number. Therefore, if a mode change of any
peripheral function involves changing the generate factor, polarity or timing of an interrupt, be sure to
clear the IR bit for that interrupt to “0” (interrupt not requested) after making such changes. Refer to the
description of each peripheral function for details about the interrupts from peripheral functions.
Figure 19.2 shows the procedure for changing the interrupt generate factor.
0
0
6
bit in the PM2 register. Set the PM24 bit to "1" when a high-level signal ("H") is applied to the NMI pin.
If the PM24 bit is set to "1" when a low-level signal ("L") is applied, NMI interrupt is generated. Once NMI
interrupt is enabled, it will not be disabled unless a reset is applied.
is because while input on the NMI pin is low the CM10 bit in the CM1 register is fixed to “0”.
when input on the NMI pin goes low, the CPU stops but CPU clock remains active; therefore, the current
consumption in the chip does not drop. In this case, normal condition is restored by an interrupt gener-
ated thereafter.
each be 2 CPU clock cycles + 300 ns or more.
debounce filter) before entering stop mode.
2
A
0
F
2
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0 -
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16
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_______
1 .
2
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, 5
during the interrupt sequence. At this time, the IR bit for the accepted interrupt is cleared to “0”.
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_______
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page 304
_______
_______
2 /
_______
_______
_______
6
16
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_______
is read in a program, the IR bit for the interrupt which has the highest priority
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6
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3
2
2 /
16
_______
9
6
in a program. When a maskable interrupt request is accepted, the CPU
, B
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16
1
6
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2 /
6
_______
) T
_______
_______
_______
16
” (disable digital
19. Usage Notes
_______
_______
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16
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