R5F21258SDFP#U0 Renesas Electronics America, R5F21258SDFP#U0 Datasheet - Page 281
R5F21258SDFP#U0
Manufacturer Part Number
R5F21258SDFP#U0
Description
IC R8C/25 MCU FLASH 52LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/25r
Specifications of R5F21258SDFP#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
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
3K x 8
Voltage - Supply (vcc/vdd)
2.2 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
52-LQFP
For Use With
YMCRPR8C25 - REF PLATFORM MOTOR CTRL R8C/25R0K521256S000BE - KIT EVAL STARTER FOR R8C/25
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
R5F21258SDFP#U0R5F21258SDFP#V2
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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R8C/24 Group, R8C/25 Group
Rev.3.00
REJ09B0244-0300
Figure 14.108 Block Diagram of Timer RD Interrupt
14.3.11 Timer RD Interrupt
Table 14.35
Channel 0
Channel 1
Timer RD generates the timer RD interrupt request based on 6 sources for each channel. The timer RD interrupt
has 1 TRDiIC register (bits IR, and ILVL0 to ILVL2), and 1 vector for each channel.
Table 14.35 lists the Registers Associated with Timer RD Interrupt, and Figure 14.108 shows a Block Diagram
of Timer RD Interrupt.
As with other maskable interrupts, the timer RD interrupt is controlled by the combination of the I flag, IR bit,
bits ILVL0 to ILVL2, and IPL. However, since the interrupt source (timer RD interrupt) is generated by a
combination of multiple interrupt request sources, the following differences from other maskable interrupts
apply:
• When bits in the TRDSRi register corresponding to bits set to 1 in the TRDIERi register are set to 1 (enable
• When either bits in the TRDSRi register or bits in the TRDIERi register corresponding to bits in the
• When the conditions of other request sources are met, the IR bit remains 1.
• When multiple bits in the TRDIERi register are set to 1, which request source causes an interrupt is
• Since each bit in the TRDSRi register is not automatically set to 0 even if the interrupt is acknowledged, set
Feb 29, 2008
interrupt), the IR bit in the TRDiIC register is set to 1 (interrupt requested).
TRDSRi register, or both of them, are set to 0, the IR bit is set to 0 (interrupt not requested). Therefore,
even though the interrupt is not acknowledged after the IR bit is set to 1, the interrupt request will not be
maintained.
determined by the TRDSRi register.
each bit to 0 in the interrupt routine. For information on how to set these bits to 0, refer to the descriptions
of the registers used in the different modes (Figures 14.40, 14.55, 14.68, 14.80, 14.91, and 14.103).
Registers Associated with Timer RD Interrupt
i = 0 or 1
IMFA, IMFB, IMFC, IMFD, OVF, UDF: Bits in TRDSRi register
IMIEA, IMIEB, IMIEC, IMIED, OVIE: Bits in TRDIER register
TRDSR0
TRDSR1
OVIE bit
UDF bit
OVF bit
Channel i
Page 262 of 485
Status Register
IMIEC bit
IMIED bit
IMIEA bit
IMIEB bit
IMFC bit
IMFD bit
IMFA bit
IMFB bit
Timer RD
TRDIER0
TRDIER1
Interrupt Enable Register
Timer RD
Timer RD interrupt request
(IR bit in TRDiIC register)
TRD0IC
TRD1IC
Interrupt Control Register
Timer RD
14. Timers
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