R5F21217JFP#U1 Renesas Electronics America, R5F21217JFP#U1 Datasheet - Page 129
![MCU FLASH 48K 2.5K CMOS 48LQFP](/photos/28/61/286102/48-lqfp__plqp0048kb-a_sml.jpg)
R5F21217JFP#U1
Manufacturer Part Number
R5F21217JFP#U1
Description
MCU FLASH 48K 2.5K CMOS 48LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/21r
Datasheet
1.R5F21216JFP.pdf
(503 pages)
Specifications of R5F21217JFP#U1
Core Processor
R8C
Core Size
16/32-Bit
Speed
20MHz
Connectivity
I²C, LIN, SIO, SSU, UART/USART
Peripherals
POR, Voltage Detect, WDT
Number Of I /o
41
Program Memory Size
48KB (48K x 8)
Program Memory Type
FLASH
Ram Size
2.5K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
R5F21217JFP#U1R5F21217JFP
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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R8C/20 Group, R8C/21 Group
Rev.2.00
REJ09B0250-0200
Figure 12.20
12.6.4
The IR bit in the interrupt control register may be set to 1 (interrupt requested) when the interrupt source
changes. When using an interrupt, set the IR bit to 0 (no interrupt requested) after changing the interrupt source.
In addition, the changes of interrupt sources include all sources that change the interrupt sources assigned to
individual software interrupt numbers, polarities, and timing. Therefore, when a mode change of the peripheral
functions involves interrupt sources, edge polarities, and timing, Set the IR bit to 0 (no interrupt requested) after
the change. Refer to each peripheral function for the interrupts caused by the peripheral functions.
Figure 12.20 shows an Example of Procedure for Changing Interrupt Sources.
Aug 27, 2008
Changing Interrupt Sources
Example of Procedure for Changing Interrupt Sources
NOTES:
IR bit:
1. Execute the above settings individually. Do not execute two
2. To prevent interrupt requests from being generated, disable
3. Refer to 12.6.5 Changing Interrupt Control Register
Page 111 of 458
or more settings at once (by one instruction).
the peripheral function before changing the interrupt
source. In this case, use the I flag if all maskable interrupts
can be disabled. If all maskable interrupts cannot be
disabled, use bits ILVL0 to ILVL2 of the interrupt whose
source is changed.
Contents for the instructions to be used and usage notes.
The interrupt control register bit of an
interrupt whose source is changed.
Set the IR bit to 0 (interrupt not requested)
Change interrupt source (including mode
using the MOV instruction
Interrupt source change
of peripheral function)
Disable interrupts
Enable interrupts
Change completed
(2, 3)
(2, 3)
(3)
12. Interrupts
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