R5F211B1SP#U0 Renesas Electronics America, R5F211B1SP#U0 Datasheet - Page 248

• 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 16.49
NOTE:
1. When receiving 1 byte, skip steps (2) to (6) after (1) and jump to processing step (7).
Dec 08, 2006
Processing step (8) is dummy read of the ICDRR register.
ICSR register
ICIER register ACKBT bit ← 0
ICIER register
Example of Register Setting in Slave Receive Mode (I
Read RDRF bit in ICSR register
Read RDRF bit in ICSR register
Dummy read in ICDRR register
No
No
Read ICDRR register
Read ICDRR register
Read ICDRR register
Slave receive mode
RDRF = 1 ?
Yes
RDRF = 1 ?
Last receive
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ACKBT bit ← 1
AAS bit ← 0
End
- 1 ?
No
Yes
Yes
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(1) Set the AAS bit to 0.
(2) Set the ACKBT bit to the transmit device.
(3) Dummy read the ICDRR register
(4) Wait until 1 byte is received.
(5) Judge (last receive - 1).
(6) Read the receive data.
(7) Set the ACKBT bit of the last byte.
(8) Read the receive data of (last byte - 1).
(9) Wait until the last byte is received
(10) Read the receive data of the last byte.
16. Clock Synchronous Serial Interface
2
C bus Interface Mode)
(1)
(1)