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7540 Group User’s Manual
List of figures
List of figures
CHAPTER 1 HARDWARE
Fig. 1 Pin configuration (32P6U-A type)..................................................................................... 1-3
Fig. 2 Pin configuration (36P2R-A type)..................................................................................... 1-3
Fig. 3 Pin configuration (32P4B-A type) ..................................................................................... 1-4
Fig. 4 Pin configuration (42S1M type) ........................................................................................1-4
Fig. 5 Functional block diagram (32P6U package) ................................................................... 1-5
Fig. 6 Functional block diagram (36P2R package) ................................................................... 1-6
Fig. 7 Functional block diagram (32P4B package) ................................................................... 1-7
Fig. 8 Memory expansion plan.....................................................................................................1-9
Fig. 9 740 Family CPU register structure.................................................................................1-11
Fig. 10 Register push and pop at interrupt generation and subroutine call .......................1-12
Fig. 11 Structure of CPU mode register...................................................................................1-14
Fig. 12 Switching method of CPU mode register....................................................................1-14
Fig. 13 Memory map diagram ....................................................................................................1-15
Fig. 14 Memory map of special function register (SFR) ........................................................1-16
Fig. 15 Structure of pull-up control register .............................................................................1-17
Fig. 16 Structure of port P1P3 control register .......................................................................1-17
Fig. 17 Block diagram of ports (1) ............................................................................................1-19
Fig. 18 Block diagram of ports (2) ............................................................................................1-20
Fig. 19 Interrupt control...............................................................................................................1-22
Fig. 20 Structure of Interrupt-related registers ........................................................................1-22
Fig. 21 Connection example when using key input interrupt and port P0 block diagram 1-23
Fig. 22 Structure of timer A mode register ..............................................................................1-25
Fig. 23 Structure of timer X mode register ..............................................................................1-26
Fig. 24 Timer count source set register ...................................................................................1-26
Fig. 25 Structure of timer Y, Z mode register .........................................................................1-32
Fig. 26 Structure of timer Y, Z waveform output control register.........................................1-32
Fig. 27 Structure of one-shot start register..............................................................................1-32
Fig. 28 Block diagram of timer 1 and timer A.........................................................................1-33
Fig. 29 Block diagram of timer X, timer Y and timer Z .........................................................1-34
Fig. 30 Block diagram of clock synchronous serial I/O1........................................................1-35
Fig. 31 Operation of clock synchronous serial I/O1 function ................................................1-35
Fig. 32 Block diagram of UART serial I/O1 .............................................................................1-36
Fig. 33 Operation of UART serial I/O1 function ......................................................................1-36
Fig. 34 Structure of serial I/O1-related registers.....................................................................1-38
Fig. 35 Structure of serial I/O2 control registers.....................................................................1-39
Fig. 36 Block diagram of serial I/O2 .........................................................................................1-39
Fig. 37 Serial I/O2 timing (LSB first) ........................................................................................1-40
Fig. 38 Structure of A-D control register ..................................................................................1-41
Fig. 39 Structure of A-D conversion register ...........................................................................1-41
Fig. 40 Block diagram of A-D converter ...................................................................................1-41
Fig. 41 Block diagram of watchdog timer.................................................................................1-42
Fig. 42 Structure of watchdog timer control register ..............................................................1-42
Fig. 43 Example of reset circuit.................................................................................................1-43
Fig. 44 Timing diagram at reset ................................................................................................1-43
Fig. 45 Internal status of microcomputer at reset ...................................................................1-44
Fig. 46 External circuit of ceramic resonator ...........................................................................1-45
Fig. 47 External circuit of RC oscillation ..................................................................................1-45
Fig. 48 External clock input circuit ............................................................................................1-45