Table Of Contents - Renesas R8C/Tiny Series Software Manual

Chapter 1 Overview ___________________________________________________
1.1 Features of R8C/Tiny series ....................................................................................................... 2
1.1.1 Features of R8C/Tiny series ............................................................................................... 2
1.1.2 Speed performance ............................................................................................................ 2
1.2 Address Space ........................................................................................................................... 3
1.3 Register Configuration ................................................................................................................ 4
1.3.1 Data registers (R0, R0H, R0L, R1, R1H, R1L, R2, and R3) ............................................... 4
1.3.2 Address registers (A0 and A1) ............................................................................................ 5
1.3.3 Frame base register (FB) .................................................................................................... 5
1.3.4 Program counter (PC) ......................................................................................................... 5
1.3.5 Interrupt table register (INTB) ............................................................................................. 5
1.3.6 User stack pointer (USP) and interrupt stack pointer (ISP) ................................................ 5
1.3.7 Static base register (SB) ..................................................................................................... 5
1.3.8 Flag register (FLG) ............................................................................................................. 5
1.4 Flag Register (FLG) .................................................................................................................... 6
1.4.1 Bit 0: Carry flag (C flag) ...................................................................................................... 6
1.4.2 Bit 1: Debug flag (D flag) .................................................................................................... 6
1.4.3 Bit 2: Zero flag (Z flag) ........................................................................................................ 6
1.4.4 Bit 3: Sign flag (S flag) ........................................................................................................ 6
1.4.5 Bit 4: Register bank select flag (B flag) ............................................................................... 6
1.4.6 Bit 5: Overflow flag (O flag) ................................................................................................. 6
1.4.7 Bit 6: Interrupt enable flag (I flag) ....................................................................................... 6
1.4.8 Bit 7: Stack pointer select flag (U flag) ................................................................................ 6
1.4.9 Bits 8-11: Reserved area .................................................................................................... 6
1.4.10 Bits 12-14: Processor interrupt priority level (IPL) ............................................................ 7
1.4.11 Bit 15: Reserved area ....................................................................................................... 7
1.5 Register Bank ............................................................................................................................. 8
1.6 Internal State after Reset is Cleared ........................................................................................... 9
1.7 Data Types ............................................................................................................................... 10
1.7.1 Integer ............................................................................................................................... 10
1.7.2 Decimal ............................................................................................................................. 11
1.7.3 Bits .................................................................................................................................... 12
1.7.4 String ................................................................................................................................ 15

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