R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 596
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 563 of 723
Figure 26.17
Notes:
1. Do not generate interrupts while processing steps (1) to (3).
2. For 1 byte of data reception, skip steps (2) to (6) after step (1) and jump to process step (7).
Process step (8) is a dummy read from the ICDRR register.
ICSR register
ICCR1 register
ICSR register
ICIER register
ICIER register
ICCR1 register
ICSR register
ICCR2 register
ICCR1 register
ICCR1 register
Read RDRF bit in ICSR register
Read RDRF bit in ICSR register
Read STOP bit in ICSR register
Dummy read in ICDRR register
Register Setting Example in Master Receive Mode (I
No
No
No
Read ICDRR register
Read ICDRR register
Read ICDRR register
Master receive mode
Last receive - 1?
Yes
Yes
Yes
RDRF = 1?
RDRF = 1?
STOP = 1?
ACKBT bit ← 0
ACKBT bit ← 1
TEND bit ← 0
TDRE bit ← 0
RCVD bit ← 1
STOP bit ← 0
RCVD bit ← 0
End
BBSY bit ← 0
TRS bit ← 0
SCP bit ← 0
MST bit ← 0
No
Yes
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(1) Set the TEND bit to 0 and set to master receive mode.
(2) Set the ACKBT bit to the transmit device.
(3) Dummy read the ICDRR register.
(4) Wait until 1 byte is received.
(5) Determine (last receive - 1).
(6) Read the receive data.
(7) Set the ACKBT bit of the last byte and set continuous
(8) Read the receive data of (last byte - 1).
(9) Wait until the last byte is received.
(10) Set the STOP bit to 0.
(11) Generate a stop condition.
(12) Wait until a stop condition is generated.
(13) Read the receive data of the last byte.
(14) Set the RCVD bit to 0.
(15) Set to slave receive mode.
Set the TDRE bit to 0.
receive operation to disable (RCVD = 1).
2
C bus Interface Mode)
(1, 2)
(1)
26. I
(2)
(1)
2
C bus Interface
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