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I/O Ports
15-21
Port 3 output mode register
Register symbol: P3MD
Address:
x'36008025
Purpose:
This register selects the content output on the port 3 pin.
Bit No.
7
6
5
4
3
2
1
0
Bit name
-
-
-
-
-
-
-
P3M
Reset
0
0
0
0
0
0
0
1
Access
R
R
R
R
R
R
R
R/W
P3M
0: Bus grant signal output (BG)
1: General-purpose input/output port (P30)
Note: When BG is selected in the P3MD register, this control signal is output regardless of the value in the P3DIR
register.
The input/output settings for this general-purpose port are made through the P3DIR register.
15.5.3 Pin Configurations
Table 15-5-1 shows the pin configurations for port 3.
Table 15-5-1 Port 3 Configuration
Port
Pin
P3n
P3M = "1"
P3M = "0"
No.
P30D = "1"
P30D = "0"
Port 3 76
P30
General-purpose output port
General-purpose input port
BG
Bus grant signal output
[Note]
: When reset (in address/data separate mode or address/data multiplex mode)
Summary of Contents for MN103001G/F01K
Page 1: ...MICROCOMPUTER MN1030 MN103001G F01K LSI User s Manual Pub No 23101 050E ...
Page 2: ......
Page 4: ......
Page 6: ......
Page 8: ......
Page 9: ...Table of Contents List of Figures and Tables 0 ...
Page 26: ...xviii ...
Page 27: ...1 0 1 General Specifications ...
Page 35: ...2 CPU 2 ...
Page 57: ...3 Extension Instruction Specifications 3 ...
Page 96: ...Extension Instruction Specifications 3 40 ...
Page 97: ...4 Memory Modes 3 4 ...
Page 102: ...Memory Modes 4 6 ...
Page 103: ...5 Operating Mode 5 ...
Page 107: ...6 Clock Generator 6 13 ...
Page 111: ...7 Internal Memory 7 ...
Page 114: ...Internal Memory 7 4 ...
Page 115: ...8 Bus Controller BC 8 ...
Page 189: ...9 Interrupt Controller 9 ...
Page 220: ...Interrupt Controller 9 32 ...
Page 221: ...10 8 bit Timers 9 10 ...
Page 254: ...8 bit Timers 10 34 ...
Page 255: ...11 16 bit Timers 11 ...
Page 292: ...16 bit Timers 11 38 ...
Page 293: ...12 Watchdog Timer 11 12 ...
Page 302: ...Watchdog Timer 12 10 ...
Page 303: ...13 Serial Interface 13 ...
Page 354: ...Serial Interface 13 52 ...
Page 355: ...14 A D Converter 14 ...
Page 367: ...15 I O Ports 15 ...
Page 431: ...16 Internal Flash Memory 16 ...
Page 439: ...17 17 Ordering Mask ROM ...
Page 442: ...Ordering Mask ROM 17 4 ...
Page 443: ...Appendix ...