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M16C/6NL View Datasheet(PDF) - Renesas Electronics

Part NameDescriptionManufacturer
M16C/6NL SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER Renesas
Renesas Electronics Renesas
M16C/6NL Datasheet PDF : 388 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
7.2 Bus Control ................................................................................................................................................ 41
7.2.1 Address Bus ....................................................................................................................................... 41
7.2.2 Data Bus ............................................................................................................................................ 41
7.2.3 Chip Select Signal .............................................................................................................................. 41
7.2.4 Read and Write Signals ..................................................................................................................... 43
7.2.5 ALE Signal ......................................................................................................................................... 43
________
7.2.6 The RDY Signal ................................................................................................................................. 44
__________
7.2.7 HOLD Signal ...................................................................................................................................... 45
7.2.8 BCLK Output ...................................................................................................................................... 45
7.2.9 External Bus Status When Internal Area Accessed ........................................................................... 47
7.2.10 Software Wait ................................................................................................................................... 47
8. Clock Generating Circuit ..................................................................................................... 51
8.1 Types of Clock Generating Circuit.............................................................................................................. 51
8.1.1 Main Clock ......................................................................................................................................... 59
8.1.2 Sub Clock ........................................................................................................................................... 60
8.1.3 On-chip Oscillator Clock .................................................................................................................... 61
8.1.4 PLL Clock ........................................................................................................................................... 61
8.2 CPU Clock and Peripheral Function Clock ................................................................................................ 63
8.2.1 CPU Clock and BCLK ........................................................................................................................ 63
8.2.2 Peripheral Function Clock .................................................................................................................. 63
8.3 Clock Output Function ............................................................................................................................... 63
8.4 Power Control ............................................................................................................................................ 64
8.4.1 Normal Operation Mode ..................................................................................................................... 64
8.4.2 Wait Mode .......................................................................................................................................... 66
8.4.3 Stop Mode .......................................................................................................................................... 68
8.5 Oscillation Stop and Re-oscillation Detection Function ............................................................................. 73
8.5.1 Operation When CM27 Bit = 0 (Oscillation Stop Detection Reset) .................................................... 73
8.5.2 Operation When CM27 Bit = 1 (Oscillation Stop, Re-oscillation Detection Interrupt) ........................ 73
8.5.3 How to Use Oscillation Stop and Re-oscillation Detection Function .................................................. 74
9. Protection ............................................................................................................................ 75
10. Interrupt ............................................................................................................................. 76
10.1 Type of Interrupts ..................................................................................................................................... 76
10.2 Software Interrupts ................................................................................................................................... 77
10.2.1 Undefined Instruction Interrupt ......................................................................................................... 77
10.2.2 Overflow Interrupt ............................................................................................................................ 77
10.2.3 BRK Interrupt ................................................................................................................................... 77
10.2.4 INT Instruction Interrupt ................................................................................................................... 77
10.3 Hardware Interrupts ................................................................................................................................. 78
10.3.1 Special Interrupts ............................................................................................................................. 78
10.3.2 Peripheral Function Interrupts .......................................................................................................... 78
10.4 Interrupts and Interrupt Vector ................................................................................................................. 79
10.4.1 Fixed Vector Tables .......................................................................................................................... 79
10.4.2 Relocatable Vector Tables ............................................................................................................... 79
10.5 Interrupt Control ....................................................................................................................................... 81
10.5.1 I Flag ................................................................................................................................................ 83
10.5.2 IR Bit ................................................................................................................................................ 83
10.5.3 ILVL2 to ILVL0 Bits and IPL ............................................................................................................. 83
A-2
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