SN8P1602B
8-Bit Micro-Controller
R REGISTERS
R register is an 8-bit buffer. There are two major functions of the register.
ꢄ
can be used as working register
ꢄ
for store high-byte data of look-up table
(MOVC instruction executed, the high-byte data of specified ROM address will be stored in R register and the
low-byte data will be stored in ACC).
082H
R
Read/Write
After reset
Bit 7
RBIT7
R/W
0
Bit 6
RBIT6
R/W
0
Bit 5
RBIT5
R/W
0
Bit 4
RBIT4
R/W
0
Bit 3
RBIT3
R/W
0
Bit 2
RBIT2
R/W
0
Bit 1
RBIT1
R/W
0
Bit 0
RBIT0
R/W
0
ꢀ
Note: Please refer to the “LOOK-UP TABLE DESCRIPTION” about R register look-up table application.
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Version 1.1
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