R5F21236KFP#U0 Renesas Electronics America, R5F21236KFP#U0 Datasheet - Page 342

• Manufacturer Part Number: R5F21236KFP#U0
• Description: IC R8C/23 MCU FLASH 48LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/23r

Specifications of R5F21236KFP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: CAN, I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, Voltage Detect, WDT
• Number Of I /o: 41
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 48-LQFP
• For Use With: RCDK8C - KIT DEV EVAL FOR CAN R8C/23R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
Figure 16.21
16.2.7
When setting the SSUMS bit in the SSMR2 register to 1 (4-wire bus communication mode), and the CSS1 bit in
the SSMR2 register to 1 (functions as SCS output pin), Set the MSS bit in the SSCRH register to 1 (operates as
a master device) and check the arbitration of the SCS pin before starting serial transfer. If the clock synchronous
serial I/O with chip select detects that the synchronized internal SCS signal is held “L” in this period, the CE bit
in the SSSR register to 1 (a conflict error occurs) and the MSS bit is automatically set to 0 (operates as a slave
device).
Figure 16.21 shows an Arbitration Check Timing.
A future transmit operation is not performed while the CE bit is set to 1. Set the CE bit to 0 (a conflict error does
not occur) before a transmit is started.
(synchronization)
SSCRH register
Transfer start
Internal SCS
SCS Pin Control and Arbitration
SCS output
MSS bit in
SCS input
Arbitration Check Timing
CE
Page 320 of 501
1
0
High-impedance
During arbitration detection
Data write to
SSTDR register
Maximum time of SCS internal
synchronization
16. Clock Synchronous Serial Interface