R5F21276SNFP#U0 Renesas Electronics America, R5F21276SNFP#U0 Datasheet - Page 285
R5F21276SNFP#U0
Manufacturer Part Number
R5F21276SNFP#U0
Description
IC R8C/27 MCU FLASH 32LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/27r
Specifications of R5F21276SNFP#U0
Core Size
16/32-Bit
Program Memory Size
32KB (32K x 8)
Core Processor
R8C
Speed
20MHz
Connectivity
I²C, LIN, SIO, SSU, UART/USART
Peripherals
LED, POR, Voltage Detect, WDT
Number Of I /o
25
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
No. Of I/o's
25
Ram Memory Size
1.5KB
Cpu Speed
20MHz
No. Of Timers
4
Digital Ic Case Style
LQFP
Supply Voltage Range
2.2V To 5.5V
Embedded Interface Type
I2C, UART
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
R0K521276S000BE - KIT DEV RSK-R8C/26-29R0E521000EPB00 - PROBE EMULATOR FOR PC7501
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
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Manufacturer
Quantity
Price
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R8C/26 Group, R8C/27 Group
Rev.2.10
REJ09B0278-0210
Figure 16.6
SS Status Register
b7 b6 b5 b4
NOTES:
1.
2.
3.
4.
5.
6.
7.
Writing 1 to CE, ORER, RDRF, TEND, or TDRE bits invalid. To set any of these bits to 0, first read 1 then w rite 0.
When the serial communication is started w hile the SSUMS bit in the SSMR2 register is set to 1 (four-w ire bus
communication mode) and the MSS bit in the SSCRH register is set to 1 (operates as master device), the CE bit is set
to 1 if “L” is applied to the SCS
When the SSUMS bit in the SSMR2 register is set to 1 (four-w ire bus communication mode), the MSS bit in the
SSCRH register is set to 0 (operates as slave device) and the SCS
transfer, the CE bit is set to 1.
Indicates w hen overrun errors occur and receive completes by error reception. If the next serial data receive
operation is completed w hile the RDRF bit is set to 1 (data in the SSRDR register), the ORER bit is set to 1. After the
ORER bit is set to 1 (overrun error), transmit and receive operations are disabled w hile the bit remains 1.
The RDRF bit is set to 0 w hen reading out the data from the SSRDR register.
Bits TEND and TDRE are set to 0 w hen w riting data to the SSTDR register.
The TDRE bit is set to 1 w hen the TE bit in the SSER register is set to 1 (transmit enabled).
When accessing the SSSR register continuously, insert one or more NOP instructions betw een the instructions to
access it.
Sep 26, 2008
b3 b2 b1
SSSR Register
b0
(7)
Bit Symbol
(b4-b3)
Symbol
SSSR
ORER
RDRF
TEND
TDRE
(b1)
Page 266 of 453
CE
—
—
_____
Conflict error flag
Nothing is assigned. If necessary, set to 0.
When read, the content is 0.
Overrun error flag
Nothing is assigned. If necessary, set to 0.
When read, the content is 0.
Receive data register full
(1,4)
Transmit end
Transmit data empty
pin input. Refer to 16.2.7 SCS
Address
Bit Name
00BCh
(1, 5)
(1)
(1)
(1, 5, 6)
_____
0 : No conflict errors generated
1 : Conflict errors generated
0 : No overrun errors generated
1 : Overrun errors generated
0 : No data in SSRDR register
1 : Data in SSRDR register
0 : The TDRE bit is set to 0 w hen transmitting
1 : The TDRE bit is set to 1 w hen transmitting
0 : Data is not transferred from registers SSTDR to
1 : Data is transferred from registers SSTDR to
Pin Control and Arbitration for m ore inform ation .
the last bit of transmit data
the last bit of transmit data
SSTRSR
SSTRSR
_____
pin input changes the level from “L” to “H” during
16. Clock Synchronous Serial Interface
After Reset
Function
00h
(2)
(3)
RW
RW
RW
RW
RW
RW
—
—
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