R5F211B1SP#U0 Renesas Electronics America, R5F211B1SP#U0 Datasheet - Page 204

• Manufacturer Part Number: R5F211B1SP#U0
• Description: IC R8C MCU FLASH 4K 20SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/1Br

Specifications of R5F211B1SP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SIO, SSU, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 13
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-SSOP
• For Use With: R0K5211B4S001BE - KIT STARTER FOR R8C/18191A1BR0K5211B4S000BE - KIT DEV EVALUATION R8C/1BR0E521174CPE10 - EMULATOR COMPACT R8C/18/19/1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/1A Group, R8C/1B Group
Rev.1.30
REJ09B0252-0130
Figure 16.14
NOTE:
(1)
(2)
(3)
Dec 08, 2006
1. Write 0 after reading 1 to set the TEND bit to 0.
SSSR register
SSER register
Sample Flowchart of Data Transmission (Clock Synchronous Communication Mode)
Write transmit data to SSTDR register
Read TDRE bit in SSSR register
Read TEND bit in SSSR register
Page 186 of 315
transmission
Initialization
TDRE = 1 ?
TEND = 1 ?
continues?
Start
Data
End
TEND bit ← 0
TE bit ← 0
Yes
No
Yes
No
(1)
Yes
No
(2) Determine whether data transmission continues.
(3) When data transmission is completed, the TEND
(1) After reading the SSSR register and confirming
that the TDRE bit is set to 1, write the transmit
data to the SSTDR register. When the transmit
data is written to the SSTDR register, the TDRE
bit is automatically set to 0.
bit is set to 1. Set the TEND bit to 0 and the TE bit
to 0 and complete transmit mode.
16. Clock Synchronous Serial Interface