R5F21334CNFP#U0 Renesas Electronics America, R5F21334CNFP#U0 Datasheet - Page 428

• 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 398 of 589
Figure 24.11
Processing
by program
Processing
by program
TDRE bit in
SSSR register
TEND bit in
SSSR register
TDRE bit in
SSSR register
TEND bit in
SSSR register
• CPHS bit = 0 (data change at odd edges), CPOS bit = 0 (“H” when clock stops), and BS3 to
• CPHS bit = 1 (data change at even edges). CPOS bit = 0 (“H” when clock stops), and BS3 to
BS0 = 1000b (8 bits)
BS0 = 1000b (8 bits)
(output)
(output)
SSCK
SSCK
SSO
SSO
SCS
SCS
Example of Synchronous Serial Communication Unit Operation during Data
Transmission (4-Wire Bus Communication Mode, 8-Bit SSU Data Transfer Length)
BS0 to BS3: Bits in SSBR register
CPHS, CPOS: Bits in SSMR register
Data write to SSTDR register
Data write to SSTDR register
TXI interrupt request is
generated
TXI interrupt request is
generated
b7
b7
1 frame
b6
1 frame
b6
b0
b0
TXI interrupt request is
generated
TXI interrupt request is
generated
b7
24. Synchronous Serial Communication Unit (SSU)
1 frame
b7
b6
TEI interrupt request is
generated
TEI interrupt request is
generated
1 frame
b6
b0
b0
High-impedance
High-impedance