R5F21257SYFP#U0 Renesas Electronics America, R5F21257SYFP#U0 Datasheet - Page 126
![MCU 2KB FLASH 48K 52-LQFP](/photos/28/61/286101/52-lqfp_sml.jpg)
R5F21257SYFP#U0
Manufacturer Part Number
R5F21257SYFP#U0
Description
MCU 2KB FLASH 48K 52-LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/25r
Specifications of R5F21257SYFP#U0
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)
2.2 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 105°C
Package / Case
52-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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R8C/24 Group, R8C/25 Group
Rev.3.00
REJ09B0244-0300
Figure 12.4
Interrupt Control Register
b7 b6 b5 b4 b3 b2 b1 b0
NOTES:
1.
2.
Rew rite the interrupt control register w hen the interrupt request w hich is applicable for the register is not generated.
Refer to 12.6.5 Changing Interrupt Control Register Contents.
The IICSEL bit in the PMR register sw itches functions.
Feb 29, 2008
Registers TRD0IC, TRD1IC, SSUIC, and IICIC
Bit Symbol
(b7-b4)
Page 107 of 485
ILVL0
ILVL1
ILVL2
(1)
SSUIC/IICIC
TRD0IC
TRD1IC
—
IR
Symbol
(2)
Interrupt priority level select bits
Interrupt request bit
Nothing is assigned. If necessary, set to 0.
When read, the content is undefined.
Bit Name
Address
0048h
0049h
004Fh
b2 b1 b0
0 0 0 : Level 0 (interrupt disable)
0 0 1 : Level 1
0 1 0 : Level 2
0 1 1 : Level 3
1 0 0 : Level 4
1 0 1 : Level 5
1 1 0 : Level 6
1 1 1 : Level 7
0 : Requests no interrupt
1 : Requests interrupt
XXXXX000b
XXXXX000b
XXXXX000b
After Reset
Function
12. Interrupts
RW
RW
RW
RW
RO
—
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