SM59A16U1
8-Bit Micro-controller
64KB with ISP Flash
& 6K+256B RAM embedded
4.1
Accumulator
ACC is the Accumulator register. Most instructions use the accumulator to store the operand.
Mnemonic: ACC
7
6
5
ACC.7 ACC.6 ACC05
Address: E0h
0
Reset
ACC.0
00h
4
ACC.4
3
ACC.3
2
ACC.2
1
ACC.1
ACC[7:0]: The A (or ACC) register is the standard 8052 accumulator.
4.2
B Register
The B register is used during multiply and divide instructions. It can also be used as a scratch pad register to store
temporary data.
Mnemonic: B
7
6
B.7
B.6
Address: F0h
0
Reset
B.0
00h
5
B.5
4
B.4
3
B.3
2
B.2
1
B.1
B[7:0]: The B register is the standard 8052 register that serves as a second accumulator.
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M071
Ver A
SM59A16U1
04/12/2013
- 33 -
SYNCMOS [ SYNCMOS TECHNOLOGIES,INC ]
