R5F21162SP#U0 Renesas Electronics America, R5F21162SP#U0 Datasheet - Page 185

• Manufacturer Part Number: R5F21162SP#U0
• Description: IC R8C MCU FLASH 8K 20SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/16r

Specifications of R5F21162SP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SIO, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 13
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 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: R0K521134S000BE - KIT EVAL STARTER FOR R8C/13
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/16 Group, R8C/17 Group
Rev.2.10
REJ09B0169-0210
Figure 15.26
NOTES:
1. When receiving 1 byte, skip steps (2) to (6) after (1) and jump to process of step (7).
Jan 19, 2006
Process of step (8) is dummy-read in the ICDRR register.
ICSR Register
ICIER Register ACKBT Bit ← 0
ICIER Register
Example of Register Setting in Slave Receive Mode
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
Yes
Last receive
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RDRF=1 ?
RDRF=1 ?
ACKBT Bit ← 1
End
- 1 ?
AAS Bit ← 0
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 to the ICDRR register
(4) Wait 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 the last byte is received
(10) Read the receive data of the last byte
15. I
(1)
2
C bus interface (IIC)
(1)