R5F21258SNFP#U0 Renesas Electronics America, R5F21258SNFP#U0 Datasheet - Page 327

• Manufacturer Part Number: R5F21258SNFP#U0
• Description: IC R8C/25 MCU FLASH 52LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/25r

Specifications of R5F21258SNFP#U0

• Core Size: 16/32-Bit
• Program Memory Size: 64KB (64K x 8)
• Core Processor: R8C
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, Voltage Detect, WDT
• Number Of I /o: 41
• Program Memory Type: FLASH
• Ram Size: 3K 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: 52-LQFP
• No. Of I/o's: 41
• Ram Memory Size: 3KB
• 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: YMCRPR8C25 - REF PLATFORM MOTOR CTRL R8C/25R0K521256S000BE - KIT EVAL STARTER FOR R8C/25
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

R8C/24 Group, R8C/25 Group
Rev.3.00
REJ09B0244-0300
Figure 16.2
SS Control Register H
b7 b6 b5 b4 b3 b2 b1 b0
NOTES:
1.
2.
3.
The set clock is used w hen the internal clock is selected.
The SSCK pin functions as the transfer clock output pin w hen the MSS bit is set to 1 (operates as master device).
The MSS bit is set to 0 (operates as slave device) w hen the CE bit in the SSSR register is set to 1 (conflict error
occurs).
The RSSTP bit is disabled w hen the MSS bit is set to 0 (operates as slave device).
Feb 29, 2008
SSCRH Register
Bit Symbol
(b4-b3)
Symbol
SSCRH
RSSTP
CKS0
CKS1
CKS2
MSS
(b7)
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Transfer clock rate select bits
Nothing is assigned. If necessary, set to 0.
When read, the content is 0.
Master/slave device select bit
Receive single stop bit
Nothing is assigned. If necessary, set to 0.
When read, the content is 0.
Address
Bit Name
00B8h
(3)
(2)
(1)
0 : Operates as slave device
1 : Operates as master device
0 : Maintains receive operation after
1 : Completes receive operation after
b2 b1 b0
0 0 0 : f1/256
0 0 1 : f1/128
0 1 0 : f1/64
0 1 1 : f1/32
1 0 0 : f1/16
1 0 1 : f1/8
1 1 0 : f1/4
1 1 1 : Do not set.
receiving 1 byte of data
receiving 1 byte of data
16. Clock Synchronous Serial Interface
After Reset
Function
00h
RW
RW
RW
RW
RW
RW
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