R5F21324ANSP#U1 Renesas Electronics America, R5F21324ANSP#U1 Datasheet - Page 322
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 292 of 583
21. Serial Interface (UART0)
The serial interface consists of two channels, UART0, UART2. This chapter describes the UART0.
21.1
Figure 21.1
UART0
RXD0
CLK0
UART0 has a dedicated timer to generate a transfer clock and operate independently. UART0 supports clock
synchronous serial I/O mode and clock asynchronous serial I/O mode (UART mode).
Figure 21.1 shows a UART0 Block Diagram. Figure 21.2 shows a Block Diagram of UART0 Transmit/Receive
Unit. Table 21.1 lists the Pin Configuration of UART0.
CLK1 and CLK0 = 00b
f32
fC
f1
f8
Overview
= 01b
= 10b
= 11b
polarity
switch
circuit
CLK
UART0 Block Diagram
Preliminary specification
Specifications in this manual are tentative and subject to change.
Clock synchronous type
(internal clock selected)
CKDIR = 0
Internal
External
CKDIR = 1
U0BRG register
1/(n0+1)
Nov 05, 2008
1/16
1/16
1/2
Clock synchronous type
Clock synchronous type
Clock synchronous type
(internal clock selected)
Clock synchronous type
(external clock selected)
UART reception
UART transmission
Reception control
Transmission
control circuit
CKDIR = 0
CKDIR = 1
circuit
CKDIR: Bit in U0MR register
CLK0, CLK1: Bits in U0C0 register
Receive clock
Transmit clock
21. Serial Interface (UART0)
Transmit/
receive
unit
TXD0
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