SMB239
CONFIGURATION REGISTERS (CONT.)
Table 12 – Configuration and User Memory Lock – 8-bit (address: 0Eh) – Non-Volatile
Bit7
X
Bit6
X
Bit5
X
Bit4
X
Bit3
X
Bit2
0
Bit1
X
Bit0
X
Configuration Lock
Unlocked – user can write to non-volatile
Configuration bits
Locked – user cannot write to non-volatile
Configuration bits
X
Bit7
X
X
Bit6
X
X
Bit5
X
X
Bit4
X
X
Bit3
X
1
Bit2
X
X
Bit1
0
X
Bit0
X
User-Memory Lock
Unlocked – user can write to general
purpose EE bits (h20-h2F)
Locked – user cannot write to general
purpose EE bits (h20-h2F)
X
X
X
X
X
X
1
X
Bit7
X
Bit6
X
Bit5
X
Bit4
X
Bit3
X
Bit2
X
Bit1
X
Bit0
0
Volatile Writes Permission
No volatile writes to registers h00-h07
Allow volatile writes to registers h00-h07
X
X
X
X
X
X
X
1
(even if h0E[2]=1)
Table 13 – EN Polarity & I2C Bus/Slave Address – 8-bit (address: 0Fh) – Non-Volatile
Bit7
0
Bit6
X
Bit5
X
Bit4
X
Bit3
X
Bit2
X
Bit1
X
Bit0
X
I2C EN Polarity (Register 31[4])
Active low – i.e. when R31[4]=0, charging is
enabled
1
X
X
X
X
X
X
X
Active high – i.e. when R31[4]=1, charging is
enabled
Bit7
X
X
X
X
X
X
X
X
Bit7
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Bit6
0
0
0
0
1
1
1
1
Bit6
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Bit5
0
0
1
1
0
0
1
1
Bit5
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Bit4
0
1
0
1
0
1
0
1
Bit4
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Bit3
X
X
X
X
X
X
X
X
Bit3
0
0
0
0
0
0
0
0
1
Bit2
X
X
X
X
X
X
X
X
Bit2
0
0
0
0
1
1
1
1
0
Bit1
X
X
X
X
X
X
X
X
Bit1
0
0
1
1
0
0
1
1
0
Bit0
X
X
X
X
X
X
X
X
Bit0
0
1
0
1
0
1
0
1
0
I2C Bus Address
000
001
010
011
100
101
110
111
I2C Slave Address
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
1
1
1
1
1
1
1
0
0
0
1
1
1
1
0
1
1
0
0
1
1
1
0
1
0
1
0
1
Note 4: Never Write to Reserved bits.
Summit Microelectronics, Inc
2129 3.0 2/23/2009
25
SUMMIT [ SUMMIT MICROELECTRONICS, INC. ]
