At89c55wd – Rainbow Electronics AT89C55WD User Manual
Page 8
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8
AT89C55WD
1921B–MICRO–09/02
Table 4. AUXR1: Auxiliary Register 1
AUXR1
Address = A2H
Reset Value = XXXXXXX0B
Not Bit Addressable
–
–
–
–
–
–
–
DPS
Bit
7
6
5
4
3
2
1
0
–
Reserved for future expansion
DPS
Data Pointer Register Select
DPS
0
Selects DPTR Registers DP0L, DP0H
1
Selects DPTR Registers DP1L, DP1H
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