
10-10
ML63326 User's Manual
Chapter 10 Ports (INPUT, OUTPUT, I/O PORT)
(2) Port control registers (P4CON0, P4CON1, P5CON0, P5CON1, P6CON0, P6CON1,
P7CON0, P7CON1)
The port 4 control registers 0/1 (P4CON0, P4CON1), port 5 control registers 0/1 (P5CON0,
P5CON1), port 6 control registers 0/1 (P6CON0, P6CON1) and port 7 control registers
(P7CON0, P7CON1) are 4-bit special function registers (SFRs) used to select port output
mode.
The output mode may be CMOS output, N-channel open drain output, P-channel open drain
output or high-impedance output.
At system reset the port control registers are set to "0", and all ports are initialized to the CMOS
output mode.
• Port 4
P41MD1
P41MD0
P40MD1
P40MD0
Port 4.1 output mode select
bit 3 bit 2
0 0 : CMOS output (initial value)
0 1 : N-channel open drain output
1 0 : P-channel open drain output
1 1 : High-impedance output
Port 4.0 output mode select
bit 1 bit 0
0 0 : CMOS output (initial value)
0 1 : N-channel open drain output
1 0 : P-channel open drain output
1 1 : High-impedance output
P4CON0 (01AH)
(R/W)
bit 3
bit 2
bit 1
bit 0
P43MD1
P43MD0
P42MD1
P42MD0
Port 4.3 output mode select
bit 3 bit 2
0 0 : CMOS output (initial value)
0 1 : N-channel open drain output
1 0 : P-channel open drain output
1 1 : High-impedance output
Port 4.2 output mode select
bit 1 bit 0
0 0 : CMOS output (initial value)
0 1 : N-channel open drain output
1 0 : P-channel open drain output
1 1 : High-impedance output
P4CON1 (01BH)
(R/W)
bit 3
bit 2
bit 1
bit 0
Summary of Contents for ML63326
Page 3: ......
Page 13: ......
Page 14: ...Chapter 1 Overview 1 ...
Page 15: ......
Page 37: ...1 22 ML63326 User s Manual Chapter 1 Overview ...
Page 38: ...Chapter 2 CPU and Memory Spaces 2 ...
Page 39: ......
Page 50: ...CPU Control Functions Chapter 3 3 ...
Page 51: ......
Page 57: ...3 6 ML63326 User s Manual Chapter 3 CPU Control Functions ...
Page 58: ...Interrupt INT326 Chapter 4 4 ...
Page 59: ......
Page 71: ...4 12 ML63326 User s Manual Chapter 4 Interrupt INT326 ...
Page 72: ...Clock Generator Circuit OSC Chapter 5 5 ...
Page 73: ......
Page 83: ...5 10 ML63326 User s Manual Chapter 5 Clock Generator Circuit OSC ...
Page 84: ...Time Base Counter TBC Chapter 6 6 ...
Page 85: ......
Page 90: ...Timers TIMER Chapter 7 7 ...
Page 91: ......
Page 115: ...7 24 ML63326 User s Manual Chapter 7 Timers TIMER ...
Page 116: ...Chapter 8 8 100 Hz Timer Counter 100HzTC ...
Page 117: ......
Page 121: ...8 4 ML63326 User s Manual Chapter 8 100 Hz Timer Counter 100HzTC ...
Page 122: ...Chapter 9 9 Watchdog Timer WDT ...
Page 123: ......
Page 128: ...Chapter 10 10 Ports INPUT OUTPUT I O PORT ...
Page 129: ......
Page 170: ...Chapter 11 11 External Memory Transfer Function EXTMEM ...
Page 171: ......
Page 179: ...11 8 ML63326 User s Manual Chapter 11 External Memory Transfer Function EXTMEM ...
Page 180: ...Chapter 12 12 Melody Driver MELODY63K ...
Page 181: ......
Page 195: ...12 14 ML63326 User s Manual Chapter 12 Melody Driver MELODY63K ...
Page 196: ...13 Chapter 13 Voice Synthesis ...
Page 197: ......
Page 228: ...14 Chapter 14 Shift Register SFT ...
Page 229: ......
Page 236: ...15 Chapter 15 LCD Driver LCD ...
Page 237: ......
Page 250: ...16 Chapter 16 Battery Low Detect Circuit BLD ...
Page 251: ......
Page 255: ...16 4 ML63326 User s Manual Chapter 16 Battery Low Detect Circuit BLD ...
Page 256: ...Chapter 17 17 Power Supply Circuit POWER ...
Page 257: ......
Page 260: ...Appendixes ...
Page 261: ......
Page 321: ...Appendix 60 ML63326 User s Manual Appendix G ...