R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 520

• 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 487 of 723
Figure 23.14
(1) IICM2 = 0 (ACK and NACK interrupts), CKPH = 0 (no clock delay)
(2) IICM2 = 0, CKPH = 1 (with clock delay)
(3) IICM2 = 1 (UART transmit/receive interrupt), CKPH = 0
(4) IICM2 = 1, CKPH = 1
SCL2
SDA2
SCL2
SDA2
SCL2
SDA2
SCL2
SDA2
The above applies when:
•
CKDIR bit in U2MR register = 0 (master selected)
Transfer to U2RB Register and Interrupt Timing
1st bit
1st bit
1st bit
1st bit
D7
D7
D7
D7
2nd bit
2nd bit
2nd bit
2nd bit
D6
D6
D6
D6
3rd bit
3rd bit
3rd bit
3rd bit
D5
D5
D5
D5
4th bit
4th bit
4th bit
4th bit
D4
D4
D4
D4
b15
(DTC source number 14 request)
(DTC source number 14 request)
5th bit
5th bit
5th bit
5th bit
...
D3
D3
D3
D3
b9
U2RB register contents
Transfer to U2RB register
b8
D0
6th bit
6th bit
6th bit
6th bit
b7
Transfer to U2RB register
D2
D2
D2
D2
D7
Receive interrupt
Receive interrupt
D6
7th bit
7th bit
7th bit
7th bit
D1
D5
D1
D1
D1
D4
8th bit
8th bit
8th bit
8th bit
D3
D0
D0
D0
D0
D2
D1
b0
9th bit
9th bit
9th bit
9th bit
ACK interrupt (DTC source number 14 request),
NACK interrupt
Transfer to U2RB register
ACK interrupt (DTC source number 14 request),
NACK interrupt
Transfer to U2RB register
D8 (ACK, NACK)
D8 (ACK, NACK)
D8 (ACK, NACK)
D8 (ACK, NACK)
b15
b15
b15
Transmit
interrupt
Transfer to U2RB register
b15
...
...
...
...
Transmit interrupt
b9
b9
b9
b9
U2RB register contents
U2RB register contents
U2RB register contents
b8
D8
b8
D8
b8
D0
U2RB register contents
b8
D8
b7
D7
b7
b7
D7
D7
b7
D6
D6
D7
D6
D5
D5
D6
D5
D4
D4
D5
23. Serial Interface (UART2)
D4
D3
D3
D4
D3
D2
D2
D3
D2
D1
D1
D2
D1
D0
D0
D1
b0
b0
b0
D0
b0