R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 526
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 493 of 723
Figure 23.18
Reception
Transmission
RXD2
DF2EN = 1
DF2EN = 0
Digital
filter
[Multiprocessor mode reception when MP = 1 (multiprocessor communication enabled)]
[Multiprocessor mode transmission when MP = 1 (multiprocessor communication enabled)]
[Multiprocessor mode transmission/reception]
SP
Block Diagram of Multiprocessor Communication Function
(1) Clock asynchronous (7 bits): Received D7 is transferred to b8 in the U2RB register.
(2) Clock asynchronous (8 bits): Received D8 is transferred to b8 in the U2RB register.
(3) Clock asynchronous (7 bits): b8 in the U2TB register is transferred externally as transfer data D7.
(4) Clock asynchronous (8 bits): b8 in the U2TB register is transferred externally as transfer data D8.
(5) PAR is disabled.
SP
SP
2SP
1SP
2SP
1SP
SP
PAR
PAR
0
(5)
(5)
PAR
enabled
PRYE = 1
PAR
disabled
PRYE = 0
PRYE = 0
PAR
disabled
PAR
enabled
PRYE = 1
0
0
0
Clock
synchronous
type
Clock
synchronous
type
0
UART
UART
0
0
(4)
UART
(9 bits)
UART
(9 bits)
0
Clock
synchronous type
UART (7 bits)
UART (8 bits)
(2)
UART (7 bits)
UART (8 bits)
Clock
synchronous type
MPTB
MPRB
(3)
(1)
Data bus high-order bits
Data bus low-order bits
Clock
synchronous
type
UART (8 bits)
UART (9 bits)
UART (8 bits)
UART (9 bits)
Clock
synchronous
type
UART
(7 bits)
UART
(7 bits)
D7
D7
D6
D6
MSB/LSB conversion circuit
MSB/LSB conversion circuit
D5
D5
23. Serial Interface (UART2)
D4
D4
UART2 receive register
UART2 transmit register
SP: Stop bit
PAR: Parity bit
PRYE: Bit in U2MR
DF2EN: Bit in URXDF
MP: Bit in U2SMR5
D3
D3
D2
D2
D1
D1
D0
D0
register
register
register
U2RB
register
U2TB
register
TXD2
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