R5F21324CNSP#U0 Renesas Electronics America, R5F21324CNSP#U0 Datasheet - Page 411
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 382 of 573
Figure 24.9
Note:
(4)
(5)
(1)
(2)
(3)
(6)
1. Write 0 after reading 1 to set the TEND bit to 0.
SSSR register
SSER register
Communication Mode)
Sample Flowchart of Data Transmission/Reception (Clock Synchronous
Write transmit data to SSTDR register
Read receive data in SSRDR register
Read TDRE bit in SSSR register
Read RDRF bit in SSSR register
Read TEND bit in SSSR register
No
transmission
RDRF = 1 ?
TEND = 1 ?
Initialization
TDRE = 1 ?
continues?
Start
Data
End
TEND bit ← 0
RE bit ← 0
TE bit ← 0
Yes
Yes
No
Yes
(2)
No
No
Yes
(1)
24. Synchronous Serial Communication Unit (SSU)
(2) Confirm that the RDRF bit is set to 1. If the RDRF
(3) Determine whether the data transmission
(4) When the data transmission is completed, the
(5) Set the TEND bit to 0 and bits RE and TE in
(6) the SSER register to 0 before ending transmit/
(1) After reading the SSSR register and confirming
bit is set to 1, read the receive data in the SSRDR
register. When the SSRDR register is read, the
RDRF bit is automatically set to 0.
continues
TEND bit in the SSSR register is set to 1.
that the TDRE bit is set to 1, write the transmit
data to the SSTDR register. When the transmit
data is written to the SSTDR register, the TDRE
bit is automatically set to 0.
receive mode.
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