4513_03 Datasheet, PDF (9/210 Pages) Renesas Technology Corp – 4-BIT SINGLE-CHIP MICROCOMPUTER

List of figures
List of figures
CHAPTER 1 HARDWARE
PIN CONFIGURATION (TOP VIEW) 4513 Group ..................................................................... 1-4
PIN CONFIGURATION (TOP VIEW) 4514 Group ..................................................................... 1-5
BLOCK DIAGRAM (4513 Group) ................................................................................................. 1-6
BLOCK DIAGRAM (4514 Group) ................................................................................................. 1-7
PORT BLOCK DIAGRAMS ......................................................................................................... 1-12
External interrupt circuit structure .............................................................................................. 1-16
Fig. 1 AMC instruction execution example ............................................................................... 1-17
Fig. 2 RAR instruction execution example ............................................................................... 1-17
Fig. 3 Registers A, B and register E ........................................................................................ 1-17
Fig. 4 TABP p instruction execution example .......................................................................... 1-17
Fig. 5 Stack registers (SKs) structure ....................................................................................... 1-18
Fig. 6 Example of operation at subroutine call ....................................................................... 1-18
Fig. 7 Program counter (PC) structure ..................................................................................... 1-19
Fig. 8 Data pointer (DP) structure ............................................................................................. 1-19
Fig. 9 SD instruction execution example .................................................................................. 1-19
Fig. 10 ROM map of M34514M8/E8 ......................................................................................... 1-20
Fig. 11 Page 1 (addresses 008016 to 00FF16) structure ....................................................... 1-20
Fig. 12 RAM map ......................................................................................................................... 1-21
Fig. 13 Program example of interrupt processing ................................................................... 1-23
Fig. 14 Internal state when interrupt occurs ............................................................................ 1-23
Fig. 15 Interrupt system diagram ............................................................................................... 1-23
Fig. 16 Interrupt sequence .......................................................................................................... 1-25
Fig. 17 External interrupt circuit structure ................................................................................ 1-26
Fig. 18 Auto-reload function ....................................................................................................... 1-29
Fig. 19 Timers structure .............................................................................................................. 1-31
Fig. 20 Watchdog timer function ................................................................................................ 1-35
Fig. 21 Program example to enter the RAM back-up mode when using the watchdog timer .... 1-35
Fig. 22 Serial I/O structure ......................................................................................................... 1-36
Fig. 23 Serial I/O register state when transferring.................................................................. 1-37
Fig. 24 Serial I/O connection example...................................................................................... 1-38
Fig. 25 Timing of serial I/O data transfer ................................................................................. 1-39
Fig. 26 A-D conversion circuit structure ................................................................................... 1-41
Fig. 27 A-D conversion timing chart.......................................................................................... 1-44
Fig. 28 Setting registers .............................................................................................................. 1-44
Fig. 29 Comparator operation timing chart............................................................................... 1-45
Fig. 30 Definition of A-D conversion accuracy ........................................................................ 1-46
Fig. 31 Voltage comparator structure ........................................................................................ 1-47
Fig. 32 Reset release timing ...................................................................................................... 1-49
Fig. 33 RESET pin input waveform and reset operation ....................................................... 1-49
Fig. 34 Power-on reset circuit example .................................................................................... 1-50
Fig. 35 Internal state at reset .................................................................................................... 1-51
Fig. 36 Voltage drop detection reset circuit ............................................................................. 1-52
Fig. 37 Voltage drop detection circuit operation waveform.................................................... 1-52
Fig. 38 State transition ................................................................................................................ 1-55
Fig. 39 Set source and clear source of the P flag ................................................................. 1-55
Fig. 40 Start condition identified example using the SNZP instruction ................................ 1-55
Fig. 41 Clock control circuit structure ....................................................................................... 1-57
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4513/4514 Group User’s Manual