R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 550
R5F21346CNFP#U0
Manufacturer Part Number
R5F21346CNFP#U0
Description
MCU 1KB FLASH 32K ROM 48-LQFP
Manufacturer
Renesas Electronics America
Series
R8C/3x/34Cr
Datasheet
1.R5F21346CNFPU0.pdf
(759 pages)
Specifications of R5F21346CNFP#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
43
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2.5K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 12x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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R8C/34C Group
REJ09B0586-0100 Rev.1.00 Jan 13, 2010
Page 517 of 723
25.4
Figure 25.4
25.4.1
Figure 25.4 shows Initialization in Clock Synchronous Communication Mode. To initialize, set the TE bit in the
SSER register to 0 (transmit disabled) and the RE bit to 0 (receive disabled) before data transmission or
reception.
Set the TE bit to 0 and the RE bit to 0 before changing the communication mode or format.
Setting the RE bit to 0 does not change the contents of flags RDRF and ORER or the contents of the SSRDR
register.
Clock Synchronous Communication Mode
Initialization in Clock Synchronous Communication Mode
Initialization in Clock Synchronous Communication Mode
Note:
SSER register
SSCRH register
1. Write 0 after reading 1 to set the ORER bit to 0.
SSMR2 register
SSMR register
SSMR2 register
SSSR register
SSCRH register
SSER register
Set bits CKS0 to CKS2
Set RSSTP bit
RE bit ← 1 (receive)
TE bit ← 1 (transmit)
Set bits RIE, TEIE, and TIE
Start
End
SCKS bit ← 1
Set SOOS bit
CPOS bit ← 0
Set MLS bit
ORER bit ← 0
CPHS bit ← 0
SSUMS bit ← 0
Set MSS bit
RE bit ← 0
TE bit ← 0
25. Synchronous Serial Communication Unit (SSU)
(1)
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