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R5F21143DSP View Datasheet(PDF) - Renesas Electronics

Part NameR5F21143DSP Renesas
Renesas Electronics Renesas
DescriptionR8C/14 Group, R8C/15 Group SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
R5F21143DSP Datasheet PDF : 277 Pages
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R8C/14 Group, R8C/15 Group
2. Central Processing Unit (CPU)
2. Central Processing Unit (CPU)
Figure 2.1 shows the CPU Register. The CPU contains 13 registers. Of these, R0, R1, R2, R3, A0, A1 and
FB comprise a register bank. Two sets of register banks are provided.
b31
R2
R3
b15
b8b7
b0
R0H (high-order of R0) R0L (low-order of R0)
R1H (high-order of R1) R1L (low-order of R1)
R2
R3
A0
A1
FB
Data Registers (1)
Address Registers (1)
Frame Bass Register (1)
b19
b15
b0
INTBH
INTBL
The 4-high order bits of INTB are INTBH and
the 16-low bits of INTB are INTBL.
b19
b0
PC
Interrupt Table Register
Program Counter
b15
b0
USP
User Stack Pointer
ISP
Interrupt Stack Pointer
SB
Static Base Register
b15
b0
FLG
b15
IPL
b8 b7
b0
U I OB S ZDC
Flag Register
Carry Flag
Debug Flag
Zero Flag
Sign Flag
Register Bank Select Flag
Overflow Flag
Interrupt Enable Flag
Stack Pointer Select Flag
Reserved Bit
Processor Interrupt Priority Level
Reserved Bit
NOTES:
1. A register bank comprises these registers. Two sets of register banks are provided
Figure 2.1 CPU Register
Rev.2.10 Jan 19, 2006 Page 10 of 253
REJ09B0164-0210
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 Overview
This MCU is built using the high-performance silicon gate CMOS process using a R8C/Tiny Series CPU core and is packaged in a 20-pin plastic molded LSSOP. This MCU operates using sophisticated instructions featuring a high level of instruction efficiency. With 1 Mbyte of address space, it is capable of executing instructions at high speed. Furthermore, the data flash ROM (1KB × 2blocks) is embedded in the R8C/15 group.
The difference between R8C/14 and R8C/15 groups is only the existence of the data flash ROM. Their peripheral functions are the same.

 Applications
Electric household appliance, office equipment, housing equipment (sensor, security), general industrial equipment, audio, etc.

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