R5F21334CNFP#U0 Renesas Electronics America, R5F21334CNFP#U0 Datasheet - Page 408

• Manufacturer Part Number: R5F21334CNFP#U0
• Description: MCU 1KB FLASH 16K ROM 32-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/33Cr

Specifications of R5F21334CNFP#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: 27
• 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 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/33C Group
REJ09B0570-0100 Rev.1.00 Dec. 14, 2009
Page 378 of 589
24.2.7
Notes:
After Reset
1. Registers SSBR, SSCRH, SSCRL, SSMR, SSER, SSSR, SSMR2, SSTDR, and SSRDR.
2. For the data output after serial data transmission, the last bit value of the transmitted serial data is retained.
3. Do not write to the SOL bit during data transfer.
Bit
b0
b1
b2
b3
b4
b5
b6
b7
Address 0199h
If the content of the SOL bit is rewritten before or after serial data transmission, the change is immediately
reflected in the data output.
When writing to the SOL bit, set the SOLP bit to 0 and the SOL bit to 0 or 1 simultaneously by the MOV
instruction.
Symbol
Symbol
Bit
SRES
SOLP
SOL
SS Control Register L (SSCRL)
—
—
—
—
—
b7
—
0
Nothing is assigned. If necessary, set to 0. When read, the content is 1.
SSU control unit reset bit
Nothing is assigned. If necessary, set to 0. When read, the content is 1.
SOL write protect bit
Serial data output value setting bit When read
Nothing is assigned. If necessary, set to 0. When read, the content is 1.
Nothing is assigned. If necessary, set to 0. When read, the content is 0.
b6
—
1
Bit Name
SOL
b5
1
(2)
SOLP
b4
1
Writing 1 to this bit resets the SSU control unit and the
SSTRSR register.
The value in the SSU internal register
The output level can be changed by the SOL bit when
this bit is set to 0.
The SOLP bit remains unchanged even if 1 is written
to it. When read, the content is 1.
0: The serial data output is set to “L”.
1: The serial data output is set to “H”.
When written
0: The data output is “L”.
1: The data output is “H”.
b3
—
1
24. Synchronous Serial Communication Unit (SSU)
(2, 3)
b2
—
1
Function
SRES
b1
0
b0
—
(1)
1
is retained.
R/W
R/W
R/W
R/W
—
—
—
—