Differences Between Conventional-specification Products and Expanded-specification Products
The differences between the conventional-specification products (μPD78F05xx, 78F05xxD) and expanded-
specification products (μPD78F05xxA, 78F05xxDA) of the 78K0/Kx2 microcontrollers are described below.
• A/D conversion time
• X1 oscillator characteristics
• Instruction cycle, peripheral hardware clock frequency, external main system clock frequency, external main
system clock input high-level width, and external main system clock input low-level width (AC characteristics)
• The number of flash memory rewrites and retention time
• Processing time of the self programming library
• Interrupt response time of the self programming library
For details, see 1.1 Differences Between Conventional-specification Products (μPD78F05xx, 78F05xxD) and
Expanded-specification Products (μPD78F05xxA, 78F05xxDA).
Purpose
This manual is intended to give users an understanding of the functions described in the
Organization below.
Organization
The manual for the 78K0/Kx2 microcontrollers is separated into two parts: this manual and
the instructions edition (common to the 78K0 microcontrollers).
78K0/Kx2
User’s Manual
(This Manual)
78K/0 Series
User’s Manual
Instructions
• Pin functions
• Internal block functions
• Interrupts
• Other on-chip peripheral functions
• Electrical specifications
• CPU functions
• Instruction set
• Explanation of each instruction
How to Read This Manual It is assumed that the readers of this manual have general knowledge of electrical
engineering, logic circuits, and microcontrollers.
• When using this manual as the manual for (A) grade products and (A2) grade products of
the 78K0/Kx2 microcontrollers:
→Only the quality grade differs between standard products and (A), (A2) grade products.
Read the part number as follows.
• μPD78F05xx→ μPD78F05xx(A), 78F05xx(A2)
• μPD78F05xxA→ μPD78F05xxA(A), 78F05xxA(A2)
• To gain a general understanding of functions:
→ Read this manual in the order of the CONTENTS. The mark “<R>” shows major
revised points. The revised points can be easily searched by copying an “<R>” in the
PDF file and specifying it in the “Find what:” field.
• How to interpret the register format:
→ For a bit number enclosed in angle brackets, the bit name is defined as a reserved
word in the RA78K0, and is defined as an sfr variable using the #pragma sfr directive
in the CC78K0.
• To check the details of a register when you know the register name:
→ See APPENDIX C REGISTER INDEX.