R5F21324ANSP#U1 Renesas Electronics America, R5F21324ANSP#U1 Datasheet - Page 338
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 308 of 583
Table 21.7
TXD0 (P1_4)
RXD0 (P1_5)
CLK0 (P1_6)
Table 21.7 lists the I/O Pin Functions in UART Mode.
After the UART0 operating mode is selected, the TXD0 pin outputs a “H” level until transfer starts. (If the NCH bit
is set to 1 (N-channel open-drain output), this pin is in the high-impedance state.)
Pin name
Preliminary specification
Specifications in this manual are tentative and subject to change.
I/O Pin Functions in UART Mode
Serial data output
Serial data input
Programmable I/O port CLK0SEL0 bit in U0SR register = 0 (CLK0 pin not used)
Transfer clock input
Function
Nov 05, 2008
TXD0SEL0 bit in U0SR register = 1
For reception only:
P1_4 can be used as a port by setting TXD0SEL0 bit = 0.
RXD0SEL0 bit in U0SR register = 1
PD1_5 bit in PD1 register = 0
For transmission only:
P1_5 can be used as a port by setting RXD0SEL0 bit = 0.
CLK0SEL0 bit in U0SR register = 1
CKDIR bit in U0MR register = 1
PD1_6 bit in PD1 register = 0
Selection Method
21. Serial Interface (UART0)
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