R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 10

• Manufacturer Part Number: R5F21346CNFP#U0
• Description: MCU 1KB FLASH 32K ROM 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/34Cr

Specifications of R5F21346CNFP#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: 43
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

SFR Page Reference ........................................................................................................................... B - 1
1.
2.
3.
4.
5.
1.1
1.2
1.3
1.4
1.5
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
3.1
5.1
5.2
5.3
5.4
5.5
5.6
1.1.1
1.1.2
2.8.1
2.8.2
2.8.3
2.8.4
2.8.5
2.8.6
2.8.7
2.8.8
2.8.9
2.8.10
5.1.1
5.1.2
5.1.3
5.1.4
5.2.1
5.2.2
Overview ......................................................................................................................................... 1
Central Processing Unit (CPU) ..................................................................................................... 11
Memory ......................................................................................................................................... 14
Special Function Registers (SFRs) ............................................................................................... 15
Resets ........................................................................................................................................... 27
Features ..................................................................................................................................................... 1
Product List ............................................................................................................................................... 4
Block Diagram .......................................................................................................................................... 5
Pin Assignment .......................................................................................................................................... 6
Pin Functions ............................................................................................................................................. 9
Data Registers (R0, R1, R2, and R3) ...................................................................................................... 12
Address Registers (A0 and A1) ............................................................................................................... 12
Frame Base Register (FB) ....................................................................................................................... 12
Interrupt Table Register (INTB) .............................................................................................................. 12
Program Counter (PC) ............................................................................................................................. 12
User Stack Pointer (USP) and Interrupt Stack Pointer (ISP) .................................................................. 12
Static Base Register (SB) ........................................................................................................................ 12
Flag Register (FLG) ................................................................................................................................ 12
R8C/34C Group ....................................................................................................................................... 14
Registers .................................................................................................................................................. 29
Hardware Reset ....................................................................................................................................... 32
Power-On Reset Function ....................................................................................................................... 34
Voltage Monitor 0 Reset ......................................................................................................................... 35
Watchdog Timer Reset ............................................................................................................................ 36
Software Reset ......................................................................................................................................... 36
Applications .......................................................................................................................................... 1
Specifications ........................................................................................................................................ 2
Carry Flag (C) ..................................................................................................................................... 12
Debug Flag (D) ................................................................................................................................... 12
Zero Flag (Z) ....................................................................................................................................... 12
Sign Flag (S) ....................................................................................................................................... 12
Register Bank Select Flag (B) ............................................................................................................ 12
Overflow Flag (O) .............................................................................................................................. 12
Interrupt Enable Flag (I) ..................................................................................................................... 13
Stack Pointer Select Flag (U) .............................................................................................................. 13
Processor Interrupt Priority Level (IPL) ............................................................................................. 13
Reserved Bit ........................................................................................................................................ 13
Processor Mode Register 0 (PM0) ...................................................................................................... 29
Reset Source Determination Register (RSTFR) ................................................................................. 29
Option Function Select Register (OFS) .............................................................................................. 30
Option Function Select Register 2 (OFS2) ......................................................................................... 31
When Power Supply is Stable ............................................................................................................. 32
Power On ............................................................................................................................................ 32
Table of Contents
A - 1