EM78P312N
8-Bit Microcontroller
R6 (Port 6 I/O Data Register)
Bit 7
P67
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
P66
P65
P64
P63
P62
P61
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
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
P73
P72
P71
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
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
P81
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
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
P97
P96
P95
P94
P93
P92
P91
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
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
TC4FF1
TC4FF0
TC4S
TC4CK2 TC4CK1 TC4CK0
TC4M1
TC4M0
Bit 7 ~ Bit 6 ( TC4FF1 ~ TC4FF0 ) : Timer/Counter 4 flip-flop control
TC4FF1
TC4FF0
Operating Mode
0
0
1
1
0
1
0
1
Clear
Toggle
Set
Reserved
Bit 5 ( TC4S ) : Timer/Counter 4 start control
TC4S = “0” : Stop and clear counter
TC4S = “1” : Start
8 •
Product Specification (V1.0) 10.03.2006
(This specification is subject to change without further notice)
ELAN [ ELAN MICROELECTRONICS CORP ]
