R5F21257SNFP#U0 Renesas Electronics America, R5F21257SNFP#U0 Datasheet - Page 12

• Manufacturer Part Number: R5F21257SNFP#U0
• Description: IC R8C/25 MCU FLASH 52LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/25r

Specifications of R5F21257SNFP#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): 2.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 52-LQFP
• For Use With: R0K521256S000BE - KIT EVAL STARTER FOR R8C/25
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

11.
12.
13.
14.
12.1
12.2
12.3
12.4
12.5
12.6
13.1
13.2
14.1
14.2
14.3
12.1.1
12.1.2
12.1.3
12.1.4
12.1.5
12.1.6
12.2.1
12.2.2
12.6.1
12.6.2
12.6.3
12.6.4
12.6.5
14.1.1
14.1.2
14.1.3
14.1.4
14.1.5
14.1.6
14.2.1
14.2.2
14.2.3
14.2.4
14.2.5
14.3.1
14.3.2
14.3.3
14.3.4
14.3.5
14.3.6
Protection .................................................................................................................................... 100
Interrupts ..................................................................................................................................... 101
Watchdog Timer .......................................................................................................................... 127
Timers ......................................................................................................................................... 132
Interrupt Overview ................................................................................................................................ 101
INT Interrupt ......................................................................................................................................... 115
Key Input Interrupt ................................................................................................................................ 118
Address Match Interrupt ........................................................................................................................ 120
Timer RD Interrupt, Clock Synchronous Serial I/O with Chip Select Interrupts, and I
Interrupt (Interrupts with Multiple Interrupt Request Sources) ............................................................ 122
Notes on Interrupts ................................................................................................................................ 124
Count Source Protection Mode Disabled .............................................................................................. 130
Count Source Protection Mode Enabled ............................................................................................... 131
Timer RA ............................................................................................................................................... 134
Timer RB ............................................................................................................................................... 150
Timer RD ............................................................................................................................................... 171
Types of Interrupts ............................................................................................................................ 101
Software Interrupts ........................................................................................................................... 102
Special Interrupts .............................................................................................................................. 103
Peripheral Function Interrupt ............................................................................................................ 103
Interrupts and Interrupt Vectors ........................................................................................................ 104
Interrupt Control ............................................................................................................................... 106
INTi Interrupt (i = 0 to 3) .................................................................................................................. 115
INTi Input Filter (i = 0 to 3) .............................................................................................................. 117
Reading Address 00000h .................................................................................................................. 124
SP Setting .......................................................................................................................................... 124
External Interrupt and Key Input Interrupt ....................................................................................... 124
Changing Interrupt Sources .............................................................................................................. 125
Changing Interrupt Control Register Contents ................................................................................. 126
Timer Mode ...................................................................................................................................... 137
Pulse Output Mode ........................................................................................................................... 139
Event Counter Mode ......................................................................................................................... 141
Pulse Width Measurement Mode ...................................................................................................... 143
Pulse Period Measurement Mode ..................................................................................................... 146
Notes on Timer RA ........................................................................................................................... 149
Timer Mode ...................................................................................................................................... 154
Programmable Waveform Generation Mode .................................................................................... 157
Programmable One-shot Generation Mode ...................................................................................... 159
Programmable Wait One-Shot Generation Mode ............................................................................. 163
Notes on Timer RB ........................................................................................................................... 167
Count Sources ................................................................................................................................... 176
Buffer Operation ............................................................................................................................... 177
Synchronous Operation ..................................................................................................................... 179
Pulse Output Forced Cutoff .............................................................................................................. 180
Input Capture Function ..................................................................................................................... 182
Output Compare Function ................................................................................................................ 196
A - 3
2
C bus Interface