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I/O Ports
15-46
15.10.2 Register Descriptions
Port 8 is a general-purpose input port that is also used for analog signal inputs AN3 to AN0 and external
interrupt inputs IRQ7 to IRQ4.
Each register for port 8 is described below.
Port 8 analog/digital input control register
Register symbol: P8AD
Address:
x'36008030
Purpose:
This register selects the analog/digital input on the port 8 pins.
(0: digital; 1: analog)
Bit No.
7
6
5
4
3
2
1
0
Bit name
-
-
-
-
P83A P82A P81A P80A
Reset
0
0
0
0
1
1
1
1
Access
R
R
R
R
R/W
R/W
R/W
R/W
Port 8 pin register
Register symbol: P8IN
Address:
x'36008090
Purpose:
This register reads the value of the port 8 pins.
Bit No.
7
6
5
4
3
2
1
0
Bit name
-
-
-
-
P83I
P82I
P81I
P80I
Reset
0
0
0
0
X
X
X
X
Access
R
R
R
R
R
R
R
R
When P8nA is "1", reading this register returns a value of "0", regardless of the actual values of the port pins.
When P8nA is "1", regardless of the actual values of the port pins, IRQ7 to IRQ4 are treated as if they were "L" by
the microcontroller internally.
Содержание MN103001G/F01K
Страница 1: ...MICROCOMPUTER MN1030 MN103001G F01K LSI User s Manual Pub No 23101 050E ...
Страница 2: ......
Страница 4: ......
Страница 6: ......
Страница 7: ...14 A D Converter 15 I O Ports 16 Internal Flash Memory 17 Ordering Mask ROM Appendix 14 15 16 17 ...
Страница 8: ......
Страница 9: ...Table of Contents List of Figures and Tables 0 ...
Страница 26: ...xviii ...
Страница 27: ...1 0 1 General Specifications ...
Страница 35: ...2 CPU 2 ...
Страница 57: ...3 Extension Instruction Specifications 3 ...
Страница 96: ...Extension Instruction Specifications 3 40 ...
Страница 97: ...4 Memory Modes 3 4 ...
Страница 102: ...Memory Modes 4 6 ...
Страница 103: ...5 Operating Mode 5 ...
Страница 107: ...6 Clock Generator 6 13 ...
Страница 111: ...7 Internal Memory 7 ...
Страница 114: ...Internal Memory 7 4 ...
Страница 115: ...8 Bus Controller BC 8 ...
Страница 189: ...9 Interrupt Controller 9 ...
Страница 220: ...Interrupt Controller 9 32 ...
Страница 221: ...10 8 bit Timers 9 10 ...
Страница 254: ...8 bit Timers 10 34 ...
Страница 255: ...11 16 bit Timers 11 ...
Страница 292: ...16 bit Timers 11 38 ...
Страница 293: ...12 Watchdog Timer 11 12 ...
Страница 302: ...Watchdog Timer 12 10 ...
Страница 303: ...13 Serial Interface 13 ...
Страница 354: ...Serial Interface 13 52 ...
Страница 355: ...14 A D Converter 14 ...
Страница 367: ...15 I O Ports 15 ...
Страница 431: ...16 Internal Flash Memory 16 ...
Страница 439: ...17 17 Ordering Mask ROM ...
Страница 442: ...Ordering Mask ROM 17 4 ...
Страница 443: ...Appendix ...