R5F21217JFP#U0 Renesas Electronics America, R5F21217JFP#U0 Datasheet - Page 320
R5F21217JFP#U0
Manufacturer Part Number
R5F21217JFP#U0
Description
IC R8C/20 MCU FLASH 48LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/21r
Datasheet
1.R5F21216JFP.pdf
(503 pages)
Specifications of R5F21217JFP#U0
Core Processor
R8C
Core Size
16/32-Bit
Speed
20MHz
Connectivity
I²C, LIN, SIO, SSU, UART/USART
Peripherals
POR, Voltage Detect, WDT
Number Of I /o
41
Program Memory Size
48KB (48K x 8)
Program Memory Type
FLASH
Ram Size
2.5K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-LQFP
For Use With
R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
R5F21217JFP#U0R5F21217JFP
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Part Number:
R5F21217JFP#U0R5F21217JFP#U1
Manufacturer:
Renesas Electronics America
Quantity:
135
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R8C/20 Group, R8C/21 Group
Rev.2.00 Aug 27, 2008
REJ09B0250-0200
16.2.5.4
Data transmit/receive is a combined operation of data transmit and receive which are described before.
Transmit/receive is started by writing data in the SSTDR register.
When the 8th clock rises or the ORER bit is set to 1 (overrun error occurs) while the TDRE bit is set to 1 (data
is transferred from the SSTDR to SSTRSR registers), the transmit/receive operation is stopped.
When switching from transmit mode (TE = 1) or receive mode (RE = 1) to transmit/receive mode (Te = RE =1),
set the TE bit to 0 and RE bit to 0 before switching. After confirming that the TEND bit is set to 0 (the TDRE
bit is set to 0 when the last bit of the transmit data is transmitted), the RERF bit is set to 0 (no data in the
SSRDR register) and the ORER bit is set to 0 (no overrun error), set the TE and RE bits to 1.
Figure 16.17 shows a Sample Flowchart of Data Transmission/Reception (Clock Synchronous Communication
Mode).
When exiting transmit/receive mode after this mode is used (TE = RE = 1), a clock may be output if transmit/
receive mode is exited after reading the SSRDR register. To avoid any clock outputs, perform either of the
following:
•
•
When subsequently switching to receive mode (TE = 0 and RE = 1), first set the SRES bit to 1, and set this bit
to 0 to reset the clock synchronous serial interface control unit and the SSTRSR register. Then, set the RE bit to
1.
First set the RE bit to 0, and then set the TE bit to 0.
Set bits TE and RE at the same time.
Data Transmission/Reception
Page 302 of 458
16. Clock Synchronous Serial Interface
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