EM78M612
Universal Serial Bus Microcontroller Series
1: Enable the pull-high function.
0: Disable the pull-high function.
P60 without Pull high Resistor
IOCD (Port 7 Pull-High Control Register) Default Value: (0B_0000_0000)
7
6
5
4
3
2
1
0
PH77
PH76
PH75
PH74
PH73
PH72
PH71
PH70
IOCD [0~7] Select whether the 200K Ohm pull-high resistor of Port 7 individual pin is
connected or not.
1: Enable the pull-high function.
0: Disable the pull-high function.
IOCE (Special Function Control Register) Default Value: (0B_1111_0000)
7
6
5
4
RUN
3
0
2
PDA
1
NA
0
NA
/Dual clock
/WUE
WTE
IOCE [2]
Pattern Detecting Application Enable Bit. This bit enables the Pattern
Detecting function which is used in the Serial Signal Transmission. When this
feature is enabled, P60 becomes a serial input pin allowing one pattern
detecting block, a counter, and two comparators to function.
1: enable
0: Disable
IOCE [3]
IOCE [4]
Undefined register. The default value is zero.
Run bit. This bit can be cleared by the firmware and set during power-on, or
by the hardware at the falling edge of wake-up signal. When this bit is cleared,
the clock system is disabled and the MCU enters into power down mode. At
the transition of wake-up signal from high to low, this bit is set to enable the
clock system.
1: Run mode. The EM78M612 is working normally.
0: Sleep mode. The EM78M612 is in power down mode.
IOCE [5]
IOCE [6]
WatchDog Timer enable bit. The bit disable/enables the WatchDog Timer.
1: Enable WDT.
0: Disable WDT.
[NOTE] If the Code Option WTC bit is "0,” WDT is always disabled.
Enable the wake-up function as triggered by port-change. This bit is set by
UDC.
1: Disable the wake-up function.
0: Enable the wake-up function.
This specification may change without further notice.
2004/4/28 V1.1
22
ELAN [ ELAN MICROELECTRONICS CORP ]
