Rainbow Electronics MAX8982X - Manual (Page 56)

Power-Management ICs for
ICERA E400/E450 Platform
MAX8982A/MAX8982X
56
Table 34. LDO2 Register (ON/OFF Control for LDO2)
Table 36. LDO3 Register (On/Off Control for LDO3)
Table 35. LDO2V Register (Output Voltage Setting for OUT2)
X = Don’t care.
ADDRESS
(HEX)
POR
(HEX)
R/W BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
4E 03 R/W Reserved Reserved Reserved Reserved Reserved Reserved LDO2[1:0]
BITS 7:2 Reserved, write 000000 to these bits.
BIT 1 BIT 0 DESCRIPTION
0 0 LDO2 off (in I 2 C on mode).
0 1 LDO2 on (in I 2 C on mode).
1 0 LDO2 on (in PWR_REQ on mode) (Group A).
1 1 LDO2 on (in PWR_REQ on mode) (Group A).
ADDRESS
(HEX)
POR
(HEX)
R/W BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
4F 04 R/W Reserved Reserved Reserved L2[4:0]
BITS 7:5 Reserved, write 000 to these bits.
DESCRIPTION
BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 V PROG (V)
0 0 0 0 0 1.50
0 0 0 0 1 1.50
0 0 0 1 0 1.50
0 0 0 1 1 1.50
0 0 1 0 0 1.80
0 0 1 0 1 2.70
0 0 1 1 0 2.70
0 0 1 1 1 2.70
0 1 0 0 0 2.70
0 1 0 0 1 2.70
0 1 0 1 0 2.70
0 1 0 1 1 1.70
0 1 1 X X 1.70
1 X X X X 1.70
ADDRESS
(HEX)
POR
(HEX)
R/W BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
50 01 R/W Reserved Reserved Reserved Reserved Reserved Reserved LDO3[1:0]
BITS 7:2 Reserved, write 000000 to these bits.
BIT 1 BIT 0 DESCRIPTION
0 0 LDO3 off (in I 2 C on mode).
0 1 LDO3 on (in I 2 C on mode).
1 0 LDO3 on (in PWR_REQ on mode) (Group B).
1 1 LDO3 on (in PWR_REQ on mode) (Group B).