R5F21324CNSP#U0 Renesas Electronics America, R5F21324CNSP#U0 Datasheet - Page 383

MCU 1KB FLASH 16K ROM 20-LSSOP

R5F21324CNSP#U0

Manufacturer Part Number
R5F21324CNSP#U0
Description
MCU 1KB FLASH 16K ROM 20-LSSOP
Manufacturer
Renesas Electronics America
Series
R8C/3x/32Cr
Datasheet

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
-
R8C/32C Group
REJ09B0573-0100 Rev.1.00 Dec. 18, 2009
Page 354 of 573
Figure 22.19
22.6.1
(1)
(2)
(3)
Figure 22.19 shows a Sample Flowchart of Multiprocessor Data Transmission. Set the MPBT bit in the U2TB
register to 1 for ID transmission cycles. Set the MPBT bit in the U2TB register to 0 for data transmission cycles.
Other operations are the same as in universal asynchronous receiver/transmitter mode (UART mode).
Set the MPBT bit in the U2TB register
Read the TI bit in the U2C1 register
Multiprocessor Transmission
in the U2C1 register to 0
Write transmit data to
Read the TXEPT bit
in the U2C0 register
data transmission?
the U2TB register
Sample Flowchart of Multiprocessor Data Transmission
Set the TE bit
TXEPT = 1?
Continue
TI = 1?
Start
End
Yes
Yes
No
Yes
No
No
(1) Read the U2C1 register to confirm that the TI bit is
(2) When transmission completes, the TXEPT bit is set
(3) To continue data transmission, read that the TI bit is 1
set to 1. Then set the MPBT bit in the U2TB register
to 0 or 1 and write transmit data to the U2TB
register.
Writing data to the U2TB register sets the TI bit to 0
automatically.
to 1 automatically.
and write data to the U2TB register. Writing data to
the U2TB register sets the TI bit to 0 automatically.
22. Serial Interface (UART2)

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