IBM EM78M611E manual DualFrq.1 DualFrq.0 Frequency, Bit P96 P95 P94 P93 P92 P91 P90, PH95 PH93

EM78M611E

Universal Serial Bus Series Microcontroller

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.

Dual_Frq.1	Dual_Frq.0	Frequency
0	0	500Hz
0	1	4kHz
1	0	32kHz
1	1	256kHz

8.2.3.5IOCB (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

8.2.3.6IOCC (Port 9 LED Sink Capacity Control Register) 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

8.2.3.7IOCD (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 25KΩ 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

Product Specification (V1.11) 04.20.2007 • 19

(This specification is subject to change without further notice)