R5F21324CNSP#U0 Renesas Electronics America, R5F21324CNSP#U0 Datasheet - Page 501
R5F21324CNSP#U0
Manufacturer Part Number
R5F21324CNSP#U0
Description
MCU 1KB FLASH 16K ROM 20-LSSOP
Manufacturer
Renesas Electronics America
Series
R8C/3x/32Cr
Datasheet
1.R5F21321CDSPU0.pdf
(605 pages)
Specifications of R5F21324CNSP#U0
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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R8C/32C Group
REJ09B0573-0100 Rev.1.00 Dec. 18, 2009
Page 472 of 573
Figure 28.3
Figure 28.4
28.3.1
INTiCOUT signal
Sampling timing
Port direction register
INTiIC register
Comparator Bi can use the same digital filter as the INTi input. The sampling clock can be selected by bits
INTiF1 and INTiF0 in the INTF register. The INTiCOUT signal output from comparator Bi is sampled every
sampling clock. When the level matches three times, the IR bit in the INTiIC register is set to 1 (interrupt
requested).
Figure 28.3 shows a Configuration of Comparator Bi Digital Filter, and Figure 28.4 shows an Operating
Example of Comparator Bi Digital Filter.
IR bit in
Note:
i =1 or 3
Comparator Bi Digital Filter (i = 1 or 3)
1. The above applies when:
IVCMPi
IVREFi
Bits INTiF1 to INTiF0 in the INTiF register are set to 01b, 10b, or 11b (digital filter used).
Configuration of Comparator Bi Digital Filter
Operating Example of Comparator Bi Digital Filter
INTi
INTiCP0, INTiCOUT: Bits in INTCMP register
INTiF0 to INTiF1: Bits in INTF register
INTiEN, INTiPL: Bits in INTEN register
i = 1 or 3
INTiCOUT
+
-
f32
f1
f8
INTiF1 to INTiF0
= 01b
= 10b
= 11b
INTiCP0 = 0
INTiCP0 = 1
Sampling clock
(match 3 times)
Digital filter
INTiEN
INTiF1 to INTiF0
= other than 00b
= 00b
Set to 0 by a program.
Both edge
detection
circuit
INTiPL = 0
INTiPL = 1
28. Comparator B
To INTi interrupt
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