R5F21324ANSP#U1 Renesas Electronics America, R5F21324ANSP#U1 Datasheet - Page 130
R5F21324ANSP#U1
Manufacturer Part Number
R5F21324ANSP#U1
Description
MCU 1KB FLASH 16K ROM 20-LSSOP
Manufacturer
Renesas Electronics America
Series
R8C/3x/32Ar
Datasheet
1.R5F21322ANSPU1.pdf
(629 pages)
Specifications of R5F21324ANSP#U1
Core Processor
R8C
Core Size
16/32-Bit
Speed
20MHz
Connectivity
I²C, LIN, SIO, SSU, UART/USART
Peripherals
POR, PWM, Voltage Detect, WDT
Number Of I /o
15
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
20-LSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Under development
R8C/32A Group
REJ09B0458-0020 Rev.0.20
Page 100 of 583
Figure 9.3
Step (1)
Step (2)
Step (3)
Step (4)
Step (5)
Step (6)
Step (7)
Step (8)
Notes:
VCA20: Bit in VCA2 register
1. Execute this routine to handle all interrupts generated in wait mode.
2. Do not set the VCA20 bit to 0 with the instruction immediately after setting the VCA20 bit to 1. Also, do not do the opposite.
3. When the VCA20 bit is set to 1, do not set the CM10 bit to 1 (stop mode).
4. When the MCU enters wait mode, follow 9.7.2 Wait Mode.
However, this does not apply if it is not necessary to start the high-speed clock or high-speed on-chip oscillator during the interrupt routine.
(internal power low consumption enabled)
(internal power low consumption disabled)
(Wait until XIN clock or high-speed on-chip
Procedure for enabling reduced internal
power consumption using VCA20 bit
oscillator clock oscillation stabilizes)
high-speed on-chip oscillator mode
high-speed on-chip oscillator clock
high-speed on-chip oscillator clock
low-speed on-chip oscillator mode
Enter high-speed clock mode or
Enter low-speed clock mode or
Preliminary specification
Specifications in this manual are tentative and subject to change.
Procedure for Reducing Internal Power Consumption Using VCA20 bit
Stop XIN clock and
Enter wait mode
Start XIN clock or
VCA20 ← 1
VCA20 ← 0
(4)
Nov 05, 2008
(2, 3)
(2)
Exit wait mode by interrupt
Step (5)
Step (6)
Step (7)
Step (8)
Step (1)
Step (2)
Step (3)
(internal power low consumption enabled)
(This is automatically set when exiting wait mode)
(Wait until XIN clock or high-speed on-chip
(internal power low consumption disabled)
or high-speed on-chip oscillator clock
oscillator clock oscillation stabilizes)
high-speed on-chip oscillator mode
high-speed on-chip oscillator clock
low-speed on-chip oscillator mode
Enter high-speed clock mode or
Enter low-speed clock mode or
Interrupt handling completed
Stop XIN clock and
In interrupt routine
Interrupt handling
Start XIN clock
VCA20 ← 1
VCA20 ← 0
(Note 1)
(2)
(2, 3)
9. Clock Generation Circuit
If it is necessary to start
the high-speed clock or
high-speed on-chip oscillator
during the interrupt routine,
execute steps (6) to (7)
in the routine.
If the high-speed clock or
high-speed on-chip oscillator
starts during the interrupt
routine, execute steps (1) to
(3) at the end of the routine.
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