R5F21324ANSP#U1 Renesas Electronics America, R5F21324ANSP#U1 Datasheet - Page 368
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 338 of 583
Figure 22.10
Figure 22.11
22.4.4
22.4.5
The data written to the U2TB register has its logic inverted before being transmitted. Similarly, the received
data has its logic inverted when read from the U2RB register. Figure 22.10 shows the Serial Data Logic
Switching.
This function inverts the polarities of the TXD2 pin output and RXD2 pin input. The logic levels of all I/O data
(including bits for start, stop, and parity) are inverted. Figure 22.11 shows the TXD and RXD I/O Inversion.
Transfer clock
TXD2
(not inverted)
Transfer clock
TXD2
(inverted)
(1) U2LCH bit in U2C1 Register = 0 (not inverted)
(2) U2LCH Bit in U2C1 Register = 1 (inverted)
The above applies when:
Serial Data Logic Switching Function
TXD and RXD I/O Polarity Inverse Function
• CKPOL bit in U2C0 register = 0 (transmit data output at the falling edge of the transfer clock)
• UFORM bit in U2C0 register = 0 (LSB first)
• STPS bit in U2MR register = 0 (one stop bit)
• PRYE bit in U2MR register = 1 (parity enabled)
Transfer clock
TXD2
(not inverted)
RXD2
(not inverted)
Transfer clock
TXD2
(inverted)
RXD2
(inverted)
(1) IOPOL Bit in U2MR Register = 0 (not inverted)
(2) IOPOL Bit in U2MR Register = 1 (inverted)
The above applies when:
TXD and RXD I/O Inversion
Preliminary specification
Specifications in this manual are tentative and subject to change.
Serial Data Logic Switching
• UFORM bit in U2C0 register = 0 (LSB first)
• STPS bit in U2MR register = 0 (one stop bit)
• PRYE bit in U2MR register = 1 (parity enabled)
“H”
“H”
“H”
“H”
“L”
“L”
“L”
“L”
“H”
“H”
“H”
“H”
“H”
“H”
“L”
“L”
“L”
“L”
“L”
“L”
Nov 05, 2008
ST
ST
ST
ST
ST
D0
D0
ST
D0
D0
D0
D0
D1
D1
D1
D1
D1
D2
D2
D1
D2
D2
D2
D3
D3
D2
D3
D3
D3
D4
D4
D3
D4
D4
D4
D5
D4
D5
D5
D5
D5
D6
D6
D5
ST: Start bit
P: Parity bit
SP: Stop bit
D6
D6
D7
D7
D6
D6
D7
D7
D7
D7
P
P
SP
SP
P
P
P
P
22. Serial Interface (UART2)
ST: Start bit
P: Parity bit
SP: Stop bit
SP
SP
SP
SP
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