Rainbow Electronics DS1874 - Manual (Page 71)

DS1874
SFP+ Controller with Digital LDD Interface
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Table 02h, Register C1h: PW_ENB
FACTORY DEFAULT 03h
READ ACCESS PW2 or (PW1 and RWTBL246) or (PW1 and RTBL246)
WRITE ACCESS PW2 or (PW1 and RWTBL246)
MEMORY TYPE Nonvolatile (SEE)
C1h RWTBL46 RTBL1C RTBL2 RTBL1A RTBL1B WPW1 WAUXAU WAUXBU
BIT 7 BIT 0
BIT 7
RWTBL46: Read and Write Tables 04h, 06h
0 = (Default) Read and write access for PW2 only.
1 = Read and write access for both PW1 and PW2.
BIT 6
RTBL1C: Read Table 01h or Table 05h, Registers F8h–FFh. Table address is dependent on MASK
bit (Table 02h, Register 89h).
0 = (Default) Read access for PW2 only.
1 = Read access for PW1 and PW2.
BIT 5
RTBL2: Read Table 02h except for PW1 value locations (Table 02h, Registers B0h–B3h)
0 = (Default) Read access for PW2 only.
1 = Read access for PW1 and PW2.
BIT 4
RTBL1A: Read Table 01h, Registers 80h–BFh
0 = (Default) Read access for PW2 only.
1 = Read access for PW1 and PW2.
BIT 3
RTBL1B: Read Table 01h, Registers C0h–F7h
0 = (Default) Read access for PW2 only.
1 = Read access for PW1 and PW2.
BIT 2
WPW1: Write Register PW1 (Table 02h, Registers B0h–B3h). For security purposes these registers
are not readable.
0 = (Default) Write access for PW2 only.
1 = Write access for PW1 and PW2.
BIT 1
WAUXAU: Write Auxiliary Memory, Registers 00h–7Fh. All users can read this area.
0 = Write access for PW2 only.
1 = (Default) Write access for user, PW1 and PW2.
BIT 0
WAUXBU: Write Auxiliary Memory, Registers 80h–FFh
0 = Read and write access for PW2 only.
1 = (Default) Read and write access for user, PW1 and PW2.