T89C5115 ATMEL Corporation, T89C5115 Datasheet - Page 25

• Manufacturer Part Number: T89C5115
• Description: Low Pin Count 8-bit MCU with A/D Converter and 16-Kbytes of Flash Memory
• Manufacturer: ATMEL Corporation

4128A–8051–04/02
Table 17. AUXR1 Register
AUXR1 (S:A2h)
Auxiliary Control Register 1
Reset Value = xxxx 00x0b
Number
Bit
7-6
7
–
5
4
3
2
1
0
Mnemonic Description
ENBOOT
DPS
GF3
Bit
6
–
–
–
–
0
Reserved
The value read from these bits is indeterminate. Do not set these bits.
Enable Boot Flash
Set this bit for map the boot flash between F800h -FFFFh
Clear this bit for disable boot flash.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
General-purpose Flag 3.
Always Zero
This bit is stuck to logic 0 to allow INC AUXR1 instruction without affecting GF3
flag.
Reserved for Data Pointer Extension.
Data Pointer Select Bit
Set to select second dual data pointer: DPTR1.
Clear to select first dual data pointer: DPTR0.
ENBOOT
5
4
–
GF3
3
2
0
T89C5115
1
–
DPS
0
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