IBM EM78M611E 사용자 설명서
EM78M611E
Universal Serial Bus Series Microcontroller
Product Specification
(V1.11) 04.20.2007
•••• 19
(This specification is subject to change without further notice)
IOCA [6, 7] Select the operation frequency in Dual Clock Mode. Four frequencies are
available and can be chosen as Dual Clock Mode in running the MCU
program.
program.
Dual_Frq.1
Dual_Frq.0
Frequency
0
0
500Hz
0
1
4kHz
1
0
32kHz
1
1
256kHz
8.2.3.5 IOCB (Port 9 Wake-up Pin Select Register)
Default Value: (0B_X111_1111)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
−
/P96
/P95
/P94
/P93
/P92
/P91
/P90
IOCB [0~6] These bits are used to select which of the Port 9 pins is to be assigned to
wake up the MCU while in Power down mode.
0
: Enable the function
1
: Disable the function
IOCB[7]
Reserved bit
8.2.3.6
IOCC (Port 9 LED Sink Capacity Control Register)
Default Value: (0B_X00X_0000)
Default Value: (0B_X00X_0000)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
−
P96
P95
−
P93
P92
P91
P90
IOCC [0~3, 5, 6] LED sink control bit. These bits are used to enable the LED sink
capacity of P90 ~ P97
0
: Disable the LED sink capacity of respective pin
1
: Enable the LED sink capacity of respective pin
IOCC [4, 7] Reserved bits
8.2.3.7 IOCD (Port 9 Pull High Control Register) Default Value: (0B_X11X_1111)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
−
/PH96
/PH95
−
/PH93
/PH92
/PH91
/PH90
IOCD [0~3, 5, 6] These bits control the 25K
Ω
pull-high resistor of individual pins in
Port 9.
0
: Enable the pull-high function
1
: Disable the pull-high function
IOCD [4, 7] Reserved bits