Preliminary
SN8P1702A/SN8P1703A
8-bit micro-controller build-in 12-bit ADC
PROGRAM COUNTER
The program counter (PC) is a 12-bit binary counter separated into the high-byte 4 bits and the low-byte 8 bits. This
counter is responsible for pointing a location in order to fetch an instruction for kernel circuit. Normally, the program
counter is automatically incremented with each instruction during program execution.
Besides, it can be replaced with specific address by executing CALL or JMP instruction. When JMP or CALL instruction
is executed, the destination address will be inserted to bit 0 ~ bit 11.
PC Initial value = xxxx 0000 0000 0000
Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
PC
-
-
-
-
-
-
0
0
0
0
0
0
0
0
0
0
PCH
PCL
PCH Initial value = xxxx 0000
0CFH
PCH
Bit 7
-
-
Bit 6
-
-
Bit 5
-
-
Bit 4
-
-
Bit 3
-
-
Bit 2
-
-
Bit 1
PC9
R/W
Bit 0
PC8
R/W
PCL Initial value = 0000 0000
0CEH
PCL
Bit 7
PC7
R/W
Bit 6
PC6
R/W
Bit 5
PC5
R/W
Bit 4
PC4
R/W
Bit 3
PC3
R/W
Bit 2
PC2
R/W
Bit 1
PC1
R/W
Bit 0
PC0
R/W
SONiX TECHNOLOGY CO., LTD
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Revision 0.5
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