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μ
PD784031
4
CONTENTS
1.
DIFFERENCES BETWEEN
μ
PD784038 SUB-SERIES ............................................................
6
2.
MAIN DIFFERENCES BETWEEN
μ
PD784038,
μ
PD784038Y,
μ
PD784026,
AND
μ
PD78234 SUB-SERIES ...................................................................................................
7
3.
PIN CONFIGURATION (TOP VIEW) .........................................................................................
8
4.
SYSTEM CONFIGURATION EXAMPLE (PPC) ........................................................................
10
5.
BLOCK DIAGRAM......................................................................................................................
11
6.
LIST OF PIN FUNCTIONS .........................................................................................................
6.1
Port Pins............................................................................................................................................
6.2
Non-Port Pins ...................................................................................................................................
6.3
I/O Circuits for Pins and Handling of Unused Pins ....................................................................
12
12
13
15
7.
CPU ARCHITECTURE................................................................................................................
7.1
Memory Space ..................................................................................................................................
7.2
CPU Registers ..................................................................................................................................
7.2.1
General-purpose registers ................................................................................................
7.2.2
Control registers ................................................................................................................
7.2.3
Special function registers (SFRs)....................................................................................
18
18
20
20
21
22
8.
PERIPHERAL HARDWARE FUNCTIONS ................................................................................
8.1
Ports...................................................................................................................................................
8.2
Clock Generator ...............................................................................................................................
8.3
Real-Time Output Port.....................................................................................................................
8.4
Timers/Counters...............................................................................................................................
8.5
PWM Output (PWM0, PWM1) ..........................................................................................................
8.6
A/D Converter ...................................................................................................................................
8.7
D/A Converter ...................................................................................................................................
8.8
Serial Interface .................................................................................................................................
8.8.1
Asynchronous serial interface/three-wire serial I/O (UART/IOE) ................................
8.8.2
Synchronous serial interface (CSI)..................................................................................
8.9
Edge Detection Function ................................................................................................................
8.10 Watchdog Timer ...............................................................................................................................
27
27
28
30
31
33
34
35
36
37
39
40
40
9.
INTERRUPT FUNCTION ............................................................................................................
9.1
Interrupt Source ...............................................................................................................................
9.2
Vectored Interrupt ............................................................................................................................
9.3
Context Switching............................................................................................................................
9.4
Macro Service ...................................................................................................................................
9.5
Examples of Macro Service Applications.....................................................................................
41
41
43
44
44
45