R5F21324CNSP#U0 Renesas Electronics America, R5F21324CNSP#U0 Datasheet - Page 327

• Manufacturer Part Number: R5F21324CNSP#U0
• Description: MCU 1KB FLASH 16K ROM 20-LSSOP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/32Cr

Specifications of R5F21324CNSP#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: 15
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-LSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/32C Group
REJ09B0573-0100 Rev.1.00 Dec. 18, 2009
Page 298 of 573
21.2.6
Notes:
After Reset
After Reset
1. Bits SUM, PER, FER, and OER are set to 0 (no error) when either of the following is set:
2. These error flags are invalid when bits SMD2 to SMD0 in the U0MR register are set to 001b (clock synchronous
b10
b11
b12
b13
b14
b15
Bit
b0
b1
b2
b3
b4
b5
b6
b7
b8
b9
Address 00A7h to 00A6h
- Bits SMD2 to SMD0 in the U0MR register are set to 000b (serial interface disabled), or
- The RE bit in the U0C1 register is set to 0 (reception disabled)
The SUM bit is set to 0 (no error) when all of bits PER, FER, and OER are set to 0 (no error).
Bits PER and FER are also set to 0 when the high-order byte of the U0RB register is read.
When setting bits SMD2 to SMD0 in the U0MR register to 000b, set the TE bit in the U0C1 register to 0
(transmission disabled) and the RE bit to 0 (reception disabled).
serial I/O mode). When read, the content is undefined.
Always read the U0RB register in 16-bit units.
Symbol
Symbol
Symbol
Bit
Bit
OER
SUM
PER
FER
UART0 Receive Buffer Register (U0RB)
—
—
—
—
—
—
—
—
—
—
—
—
SUM
b15
b7
—
X
X
—
—
Nothing is assigned. If necessary, set to 0. When read, the content is undefined.
Overrun error flag
Framing error flag
Parity error flag
Error sum flag
PER
b14
b6
—
X
X
(1, 2)
Bit Name
(1, 2)
(1)
(1, 2)
FER
b13
b5
—
X
X
OER
b12
b4
—
X
X
b11
b3
Receive data (D7 to D0)
Receive data (D8)
0: No overrun error
1: Overrun error
0: No framing error
1: Framing error
0: No parity error
1: Parity error
0: No error
1: Error
—
—
X
X
b10
b2
—
—
X
X
Function
b1
b9
—
—
X
X
21. Serial Interface (UART0)
b0
b8
—
—
X
X
R/W
—
R
R
R
R
R
R