Table of Contents
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Quick Reference to Pages Classified by Address ................................................................. B-1
1. Overview ......................................................................................................... 1
1.1 Applications ...................................................................................................................... 1
1.2 Performance Outline ......................................................................................................... 2
1.3 Block Diagram .................................................................................................................. 4
1.4 Product List ....................................................................................................................... 6
1.5 Pin Configuration ............................................................................................................ 10
1.6 Pin Description ............................................................................................................... 12
2. Central Processing Unit (CPU) ......................................................................14
2.1 Data Registers (R0, R1, R2 and R3) .............................................................................. 14
2.2 Address Registers (A0 and A1) ...................................................................................... 14
2.3 Frame Base Register (FB) .............................................................................................. 15
2.4 Interrupt Table Register (INTB) ....................................................................................... 15
2.5 Program Counter (PC) .................................................................................................... 15
2.6 User Stack Pointer (USP) and Interrupt Stack Pointer (ISP) .......................................... 15
2.7 Static Base Register (SB) ............................................................................................... 15
2.8 Flag Register (FLG) ........................................................................................................ 15
2.8.1 Carry Flag (C Flag) .................................................................................................. 15
2.8.2 Debug Flag (D Flag) ................................................................................................. 15
2.8.3 Zero Flag (Z Flag) ................................................................................................... 15
2.8.4 Sign Flag (S Flag) .................................................................................................... 15
2.8.5 Register Bank Select Flag (B Flag) .......................................................................... 15
2.8.6 Overflow Flag (O Flag) ............................................................................................. 15
2.8.7 Interrupt Enable Flag (I Flag) ................................................................................... 15
2.8.8 Stack Pointer Select Flag (U Flag) ........................................................................... 15
2.8.9 Processor Interrupt Priority Level (IPL) .................................................................... 15
2.8.10 Reserved Area ....................................................................................................... 15
3. Memory ..........................................................................................................16
4. Special Function Register (SFR) Map ............................................................17
5. Reset ..............................................................................................................28
5.1 Hardware Reset .............................................................................................................. 28
5.1.1 Hardware Reset 1 .................................................................................................... 28
5.1.2 Hardware Reset 2 .................................................................................................... 28
Table of Contents
A-1
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