EM78P312N
8-Bit Microcontroller
R6 (Port 6 I/O Data Register)
Bit 7
P67
Bit 6
P66
Bit 5
P65
Bit 4
P64
Bit 3
P63
Bit 2
P62
Bit 1
P61
Bit 0
P60
Bit 7 ~ Bit 0 ( P67 ~ P60 ) :
8-bit Port 6 I/O data register
User can use IOC6 register to define each bit whether input or output.
R7 (Port 7 I/O Data Register)
Bit 7
0
Bit 6
0
Bit 5
0
Bit 4
0
Bit 3
P73
Bit 2
P72
Bit 1
P71
Bit 0
P70
Bit 3 ~ Bit 0 ( P73 ~ P70 ) :
Port 73 ~ Port 70 I/O data register
User can use IOC7 register to define each bit whether input or output.
R8 (Port8 I/O Data Register)
Bit 7
0
Bit 6
0
Bit 5
0
Bit 4
0
Bit 3
0
Bit 2
0
Bit 1
P81
Bit 0
P80
Bit 1 ~ Bit 0 ( P81 ~ P80 ) :
Port 81 ~ Port 80 I/O data register
User can use IOC8 register to define each bit whether input or output.
R9 (Port9 I/O Data Register)
Bit 7
P97
Bit 6
P96
Bit 5
P95
Bit 4
P94
Bit 3
P93
Bit 2
P92
Bit 1
P91
Bit 0
P90
Bit 7 ~ Bit 0 ( P97 ~ P90 ) :
8-bit Port 97 ~ Port 90 I/O data register
User can use IOC9 register to define each bit whether input or output.
RB (Timer/Counter 4 Control Register)
Bit 7
TC4FF1
Bit 6
TC4FF0
Bit 5
TC4S
Bit 4
TC4CK2
Bit 3
TC4CK1
Bit 2
TC4CK0
Bit 1
TC4M1
Bit 0
TC4M0
Bit 7 ~ Bit 6 ( TC4FF1 ~ TC4FF0 ) :
Timer/Counter 4 flip-flop control
TC4FF1
0
0
1
1
TC4FF0
0
1
0
1
Operating Mode
Clear
Toggle
Set
Reserved
Bit 5 ( TC4S ) :
Timer/Counter 4 start control
TC4S = “0” :
Stop and clear counter
TC4S = “1” :
Start
8
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Product Specification (V1.0) 10.03.2006
(This specification is subject to change without further notice)
EMC [ ELAN MICROELECTRONICS CORP ]
