R5F21324CNSP#U0 Renesas Electronics America, R5F21324CNSP#U0 Datasheet - Page 389

• Manufacturer Part Number: R5F21324CNSP#U0
• Description: MCU 1KB FLASH 16K ROM 20-LSSOP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/32Cr

Specifications of R5F21324CNSP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, PWM, Voltage Detect, WDT
• Number Of I /o: 15
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-LSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/32C Group
REJ09B0573-0100 Rev.1.00 Dec. 18, 2009
Page 360 of 573
23. Clock Synchronous Serial Interface
The clock synchronous serial interface is configured as follows.
Clock synchronous serial interface
The clock synchronous serial interface uses the registers at addresses 0193h to 019Dh. Registers, bits, symbols, and
functions vary even for the same addresses depending on the mode. Refer to the registers of each function for details.
Also, the differences between clock synchronous communication mode and clock synchronous serial mode are the
options of the transfer clock, clock output format, and data output format.
23.1
Table 23.1
0
0
1
1
IICSEL Bit in
Synchronous serial communication unit (SSU)
I
The clock synchronous serial interface has four modes.
Table 23.1 lists the Mode Selections. Refer to 24. Synchronous Serial Communication Unit (SSU), 25. I
Interface and the sections that follow for details of each mode.
SSUIICSR
2
Register
C bus Interface
Mode Selection
(ICE Bit in ICCR1
0
0
1
1
Mode Selections
Bit 7 in 0198h
Register)
(SSUMS Bit in SSMR2
0
1
0
1
Register, FS Bit in
SAR Register)
Bit 0 in 019Dh
Synchronous serial
communication unit
I
2
C bus interface
Function
Clock synchronous communication mode
4-wire bus communication mode
I
Clock synchronous serial mode
2
C bus interface mode
23. Clock Synchronous Serial Interface
Clock synchronous
communication mode
4-wire bus communication mode
I
Clock synchronous serial mode
2
C bus interface mode
Mode
2
C bus