EMC EM78612 ユーザーズマニュアル
EM78612
Universal Serial Bus Microcontroller
Product Specification (V1.0) 03.22.2006
•••• 19
(This specification is subject to change without further notice)
1
0
PS/2 Mode
1
1
USB Test Mode
IOCA [2~5]
Undefined registers. The default value is 0.
IOCA [6,7]
Select the operation frequency in Dual Clock Mode. Four frequencies
are available and can be chosen as Dual Clock mode for running the
MCU program.
are available and can be chosen as Dual Clock mode for running the
MCU program.
Dual_Frq.1
Dual_Frq.0
Frequency
0
0
500Hz
0
1
4kHz
1
0
32kHz
1
1
256kHz
IOCB (Port 6 Pull-Low Control Register)
Default Value: (0B_0000_0000)
7
6
5
4
3
2
1
0
PL67
PL66
PL65
PL64
PL63
PL62
PL61
PL60
IOCB [0~7]
Select whether the 10K Ohm pull-low resistor of Port 6 individual pin is
connected or not.
connected or not.
1: Enable the pull-low function.
0: Disable the pull-low function.
IOCC (Port 6 Pull-High Control Register)
Default Value: (0B_0000_0000)
7
6
5
4
3
2
1
0
PH67
PH66
PH65
PH64
PH63
PH62
PH61
PH60
IOCC [0~7]
Select whether the 132K Ohm pull-high resistor of Port 6 individual pin is
connected or not.
connected or not.
1: Enable the pull-high function.
0: Disable the pull-high function.