IBM EM78P312N manual Bit Microcontroller R6 Port 6 I/O Data Register, R7 Port 7 I/O Data Register

EM78P312N

8-Bit Microcontroller

R6 (Port 6 I/O Data Register)

Bit 7	Bit 6	Bit 5	Bit 4	Bit 3	Bit 2	Bit 1	Bit 0
P67	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	Clear
0	1	Toggle
1	0	Set
1	1	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)