
ML66517 Family User’s Manual
Contents
Contents – 9
Chapter 17 Bus Port Functions
17.1 Overview ...................................................................................................................................................17-1
17.2 Port Operation ...........................................................................................................................................17-1
17.2.1 Port Operation When Accessing Program Memory ............................................................................17-1
17.2.2 Port Operation When Accessing Data Memory ..................................................................................17-2
17.3 External Memory Access ..........................................................................................................................17-3
17.3.1 External Program Memory Access......................................................................................................17-3
17.3.2 External Data Memory Access ............................................................................................................17-4
17.4 External Memory Access Timing..............................................................................................................17-5
17.4.1 External Program Memory Access Timing .........................................................................................17-5
17.4.2 External Data Memory Access Timing ...............................................................................................17-6
17.5 Notes Regarding Usage of Bus Port Function...........................................................................................17-8
17.5.1 Dummy Read Strobe Output ...............................................................................................................17-8
Chapter 18 Flash Memory
18.1 Overview ...................................................................................................................................................18-1
18.2 Features .....................................................................................................................................................18-1
18.3 Programming Modes .................................................................................................................................18-2
18.4 Parallel Mode ............................................................................................................................................18-4
18.4.1 Overview of the Parallel Mode............................................................................................................18-4
18.4.2 PROM Writer Setting ..........................................................................................................................18-4
18.4.3 Flash Memory Programming Conversion Adapter..............................................................................18-4
18.5 Serial Mode ...............................................................................................................................................18-5
18.5.1 Overview of the Serial Mode...............................................................................................................18-5
18.5.2 Serial Mode Settings............................................................................................................................18-5
(1)
Pins used in serial mode.................................................................................................................18-5
(2)
Serial mode connection circuit.......................................................................................................18-6
(3)
Serial mode programming method.................................................................................................18-8
(4)
Setting of security function ............................................................................................................18-8
(5)
Notes on use of serial mode ...........................................................................................................18-8
18.6 User Mode.................................................................................................................................................18-9
18.6.1 Overview of the User Mode ................................................................................................................18-9
18.6.2 User Mode Programming Registers...................................................................................................18-10
18.6.3 Description of User Mode Registers..................................................................................................18-11
(1)
Flash memory address register (FLAADRS) ...............................................................................18-11
(2)
Flash memory acceptor (FLAACP) .............................................................................................18-11
(3)
Flash memory control register (FLACON)..................................................................................18-12
18.6.4 User Mode Programming Example ...................................................................................................18-15
(1)
User mode programming flowchart example...............................................................................18-15
(2)
User mode programming program example.................................................................................18-16
18.6.5 Notes on Use of User Mode ..............................................................................................................18-16
18.7 Notes on Programming............................................................................................................................18-17
(1)
Programming of flash memory immediately after power-on .......................................................18-17
(2)
Note on STOP mode release ........................................................................................................18-17
(3)
Supply voltage sense reset function .............................................................................................18-17
(4)
Note on timer 0 setting in serial mode .........................................................................................18-17
Chapter 19 Electrical Characteristics
19.1 Absolute Maximum Ratings......................................................................................................................19-1
19.2 Recommended Operating Conditions........................................................................................................19-1
19.3 Allowable Output Current Values .............................................................................................................19-2
19.4 DC Characteristics.....................................................................................................................................19-3
19.5 AC Characteristics.....................................................................................................................................19-4
19.6 A/D Converter Characteristics ..................................................................................................................19-8