R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 591

• Manufacturer Part Number: R5F21346CNFP#U0
• Description: MCU 1KB FLASH 32K ROM 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/34Cr

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: -

R8C/34C Group
REJ09B0586-0100 Rev.1.00 Jan 13, 2010
Page 558 of 723
Figure 26.11
Figure 26.12
Program processing
(master output)
(master output)
ICDRR register
Program processing
ICDRS register
(master output)
(master output)
ICDRS register
ICDRR register
(slave output)
(slave output)
ICSR register
(slave output)
(slave output)
ICSR register
RDRF bit in
RDRF bit in
SDA
SDA
SCL
SCL
SDA
SDA
SCL
SCL
Operating Timing in Slave Receive Mode (I
Operating Timing in Slave Receive Mode (I
(2) Dummy read ICDRR register.
A
A
9
9
b7
1
b6
2
b7
1
(3) Set ACKBT bit to 1.
b5
b6
3
2
b4
b5
4
3
Data 1
b3
5
b4
4
b2
2
2
b3
C bus Interface Mode) (1)
6
C bus Interface Mode) (2)
Data 1
(3) Read ICDRR register.
5
b1
b2
7
6
b0
b1
8
7
(2) Read ICDRR register.
A
b0
8
(4) Read ICDRR register.
9
A
9
26. I
Data 1
b7
Data 1
1
2
Data 2
Data 2
C bus Interface