ML63611 User’s Manual
Chapter 10 Ports (INPUT, I/O PORT)
10 – 27
OPTION B (D): 1.5 V (3.0 V), With regulator
circuit for LCD bias
OPTION A (C): 1.5 V (3.0 V), Without regulator
circuit for LCD bias
10.7
Port E (PE.0–PE.3)
The ML63611 has Port E, a 4-bit input/output port.
Apart from the input/output port function, Port E has the functions of external interrupts, the function of RC
oscillator clock output for an A/D converter, the low-speed clock output function, and the high-speed clock output
function.
10.7.1 Port E Configuration
For the input port functions, there are the input modes of input with pull-up resistor, input with pull-down resistor,
and high impedance, or the output modes of P-channel open drain output, N-channel open drain output, CMOS
output, and high impedance, and one of the modes can be selected by the Port E control registers (PECON0 and
PECON1).
The external 2 interrupt has been assigned to PE.3.
The function of RC oscillator clock output for an A/D converter, the low-speed clock output function, and the
high-speed clock output function have been assigned to PE.0, PE.1, and PE.2, respectively. These functions can be
selected by the Port E mode register (PEMOD).
The circuit configuration for port E is shown in Figure 10-14.
Output
port
control
PED
PEDIR
PECON0
PECON1
PEMOD
Pull-up/
pull-down
control
4
3
V
DD
V
DD
PE.0–PE.3
V
SS
V
SS
PE.3
(to external 2 interrupt
control circuit)
MON (from A/D
converter circuit),
TBCCLK (from low-
speed oscillation circuit),
HSCLK (from high-
speed oscillation circuit)
1
4
Data bus
Figure 10-14 Input/Output Port (Port E) Configuration
Содержание ML63611
Страница 9: ...Chapter 1 Overview...
Страница 33: ...Chapter 2 CPU and Memory Spaces...
Страница 42: ...Chapter 3 CPU Control Functions...
Страница 49: ...Chapter 4 Interrupt INT...
Страница 62: ...Chapter 5 Clock Generator Circuit OSC...
Страница 71: ...Chapter 6 Time Base Counter TBC...
Страница 75: ...Chapter 7 Timers TIMER...
Страница 99: ...Chapter 8 100 Hz Timer Counter 100HzTC...
Страница 103: ...Chapter 9 Watchdog Timer WDT...
Страница 108: ...Chapter 10 Ports INPUT I O PORT...
Страница 140: ...Chapter 11 Melody Driver MELODY...
Страница 152: ...Chapter 12 Serial Port SIO...
Страница 179: ...Chapter 13 LCD Driver LCD...
Страница 200: ...Chapter 14 Battery Low Detect Circuit BLD...
Страница 204: ...Chapter 15 Power Supply Circuit POWER...
Страница 215: ...Chapter 16 A D Converter ADC...
Страница 238: ...Appendixes...
Страница 271: ...ML63611 User s Manual First Edition May 2001 Second Edition June 2001 2001 Oki Electric Industry Co Ltd PEUL63611 02...