
ML610471/472/473/Q471/Q472/Q473 User's Manual
Chapter 15 Port 4
15-9
•
P44MD1, P44MD0
(bit 4)
The P44MD1 and P44MD0 bits are used to select the primary, secondary, or tertiary function of the P44 pin.
P44MD1 P44MD0
Description
0
0
General-purpose input/output mode (initial value)
0
1
RC oscillation waveform input pin for RC-AD (channel 1)
1 0
Prohibited
1 1
Prohibited
•
P43MD1, P43MD0
(bit 3)
The P43MD1 and P43MD0 bits are used to select the primary, secondary, or tertiary function of the P43 pin.
P43MD1 P43MD0
Description
0
0
General-purpose input/output mode (initial value)
0
1
UART0 data output pin
1 0
Prohibited
1 1
Prohibited
•
P42MD1, P42MD0
(bit 2)
The P42MD1 and P42MD0 bits are used to select the primary, secondary, or tertiary function of the P42 pin.
In 48-pin plastic TQFP, P42pin is not available.
P42MD1 P42MD0
Description
0
0
General-purpose input/output mode (initial value)
0
1
UART0 data input pin
1 0
Prohibited
1 1
Prohibited
Note:
When the pin is set to "Prohibited" and the output mode is selected (by the Port 4 control register), the Port 4
output pin state is fixed as follows regardless of the data of the port data register P4D:
When high-impedance output is selected: Output pin is high-impedance
When P-channel open drain output is selected: Output pin is high-impedance
When N-channel open drain output is selected: Output pin is fixed to "L"
When CMOS output is selected: Output pin is fixed to "L"
When using the RC-ADC as the secondary function, set the P4DIR, P4CON0, and P4CON1 registers to bring each
pin state to high-impedance input. Pull-up or Pull-down input makes drawing the current.
Содержание ML610471
Страница 12: ...Chapter 1 Overview...
Страница 38: ...Chapter 2 CPU and Memory Space...
Страница 44: ...Chapter 3 Reset Function...
Страница 48: ...Chapter 4 MCU Control Function...
Страница 62: ...Chapter 5 Interrupts...
Страница 82: ...Chapter 6 Clock Generation Circuit...
Страница 94: ...Chapter 7 Time Base Counter...
Страница 105: ...Chapter 8 Capture...
Страница 114: ...Chapter 9 Timer...
Страница 133: ...Chapter 10 Watchdog Timer...
Страница 141: ...Chapter 11 UART...
Страница 164: ...Chapter 12 Port 0...
Страница 173: ...Chapter 13 Port 2...
Страница 180: ...Chapter 14 Port 3...
Страница 188: ...Chapter 15 Port 4...
Страница 199: ...Chapter 16 Port 6...
Страница 205: ...Chapter 17 RC Oscillation Type A D Converter...
Страница 225: ...Chapter 18 LCD Drivers...
Страница 243: ...Chapter 19 Power Supply Circuit...
Страница 245: ...Chapter 20 uEASE Flash Writer System...
Страница 249: ...Chapter 21 Software Development...
Страница 258: ...Appendixes...
Страница 280: ...Revision History...