Instruction Manual

40 _____________________________________________________________________________________
DS1876
SFP Controller with Dual LDD Interface
Lower Memory, Register 7Fh: TABLE SELECT (TBL SEL)
Table 01h Register Descriptions
Table 01h, Register 80h–F7h: EEPROM
POWER-ON VALUE TBLSELPON (Table 02h, Register C7h)
READ ACCESS All
WRITE ACCESS All
A2h AND B2h MEMORY Different A2h and B2h memory locations
MEMORY TYPE Volatile
7Fh 2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
BIT 7 BIT 0
The upper memory tables of the DS1876 are accessible by writing the desired table value in this register. The
power-on value of this register is defined by the value written to TBLSELPON (Table 02h, Register C7h).
POWER-ON VALUE 00h
READ ACCESS PW2 or (PW1 and RWTBL1A) or (PW1 and RTBL1A)
WRITE ACCESS PW2 or (PW1 and RWTBL1A)
A2h AND B2h MEMORY Common A2h and B2h memory location
MEMORY TYPE Nonvolatile (EE)
80h–F7h EE EE EE EE EE EE EE EE
BIT 7 BIT 0
EEPROM for PW1 and/or PW2 level access.