Rev. 3.00, 03/04, page xxi of xl
17.5
Usage Note........................................................................................................................594
Section 18 A/D Converter..................................................................................595
18.1
Features.............................................................................................................................595
18.1.1
Block Diagram.....................................................................................................596
18.2
Input/Output Pins..............................................................................................................597
18.3
Register Descriptions........................................................................................................598
18.3.1
A/D Data Registers A to D (ADDRA to ADDRD) .............................................598
18.3.2
A/D Control/Status Register (ADCSR) ...............................................................599
18.3.3
A/D Control Register (ADCR) ............................................................................600
18.4
Operation ..........................................................................................................................601
18.4.1
Single Mode.........................................................................................................601
18.4.2
Scan Mode...........................................................................................................601
18.4.3
Input Sampling and A/D Conversion Time .........................................................602
18.4.4
External Trigger Input Timing.............................................................................603
18.5
Interrupt Source ................................................................................................................604
18.6
A/D Conversion Accuracy Definitions.............................................................................604
18.7
Usage Notes......................................................................................................................606
18.7.1
Permissible Signal Source Impedance.................................................................606
18.7.2
Influences on Absolute Accuracy........................................................................606
18.7.3
Setting Range of Analog Power Supply and Other Pins......................................607
18.7.4
Notes on Board Design........................................................................................607
18.7.5
Notes on Noise Countermeasures........................................................................607
Section 19 RAM ................................................................................................609
Section 20 Flash Memory (0.18-
μ
m F-ZTAT Version)....................................611
20.1
Features.............................................................................................................................611
20.1.1
Operating Mode...................................................................................................613
20.1.2
Mode Comparison................................................................................................614
20.1.3
Flash Memory MAT Configuration.....................................................................615
20.1.4
Block Division.....................................................................................................616
20.1.5
Programming/Erasing Interface...........................................................................618
20.2
Input/Output Pins..............................................................................................................620
20.3
Register Descriptions........................................................................................................620
20.3.1
Programming/Erasing Interface Register.............................................................621
20.3.2
Programming/Erasing Interface Parameter..........................................................628
20.4
On-Board Programming Mode .........................................................................................638
20.4.1
Boot Mode...........................................................................................................638
20.4.2
User Program Mode.............................................................................................642
20.4.3
User Boot Mode...................................................................................................652
20.4.4
Procedure Program and Storable Area for Programming Data............................655
20.5
Protection..........................................................................................................................665