R5F21275SNFP#U0 Renesas Electronics America, R5F21275SNFP#U0 Datasheet - Page 338

IC R8C/27 MCU FLASH 32LQFP

R5F21275SNFP#U0

Manufacturer Part Number
R5F21275SNFP#U0
Description
IC R8C/27 MCU FLASH 32LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/27r
Datasheet

Specifications of R5F21275SNFP#U0

Core Processor
R8C
Core Size
16/32-Bit
Speed
20MHz
Connectivity
I²C, LIN, SIO, SSU, UART/USART
Peripherals
LED, POR, Voltage Detect, WDT
Number Of I /o
25
Program Memory Size
24KB (24K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
2.2 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
32-LQFP
For Use With
R0K521276S000BE - KIT DEV RSK-R8C/26-29R0E521000EPB00 - PROBE EMULATOR FOR PC7501
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-

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R8C/26 Group, R8C/27 Group
Rev.2.10
REJ09B0278-0210
Figure 16.46
NOTES:
1. Do not generate the interrupt while processing steps (1) to (3).
2. When receiving 1 byte, skip steps (2) to (6) after (1) and jump to process of step (7).
processing of step (8) is dummy read of the ICDRR register.
Sep 26, 2008
ICSR register
ICCR1 register
ICSR register
ICIER register
ICIER register
ICCR1 register
ICSR register
ICCR2 register
ICCR1 register
ICCR1 register
Read RDRF bit in ICSR register
Read RDRF bit in ICSR register
Read STOP bit in ICSR register
Dummy read in ICDRR register
Example of Register Setting in Master Receive Mode (I
No
No
No
Read ICDRR register
Read ICDRR register
Read ICDRR register
Master receive mode
RDRF = 1 ?
Yes
RDRF = 1 ?
Yes
Yes
Last receive
STOP = 1 ?
ACKBT bit ← 0
ACKBT bit ← 1
TEND bit ← 0
TDRE bit ← 0
- 1 ?
RCVD bit ← 1
Page 319 of 453
STOP bit ← 0
RCVD bit ← 0
End
BBSY bit ← 0
TRS bit ← 0
SCP bit ← 0
MST bit ← 0
No
Yes
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(1) Set the TEND bit to 0 and set to master receive mode.
(2) Set the ACKBT bit to the transmit device
(3) Dummy read the ICDRR register
(4) Wait for 1 byte to be received
(5) Judge (last receive - 1)
(6) Read the receive data
(7) Set the ACKBT bit of the last byte and set to disable
(8) Read the receive data of (last byte - 1)
(9) Wait until the last byte is received
(10) Set the STOP bit to 0
(11) Generate the stop condition
(12) Wait until the stop condition is generated
(13) Read the receive data of the last byte
(14) Set the RCVD bit to 0
(15) Set to slave receive mode
Set the TDRE bit to 0
continuous receive operation (RCVD = 1)
16. Clock Synchronous Serial Interface
2
C bus Interface Mode)
(1,2)
(1)
(1)
(2)

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