SMB239
CONFIGURATION REGISTERS (CONT.)
Table 9 – Battery charging control – 8-bit (address: 05h) – Non-Volatile & Volatile (mirror)
Bit7
0
Bit6
X
Bit5
X
Bit4
X
Bit3
X
Bit2
X
Bit1
X
Bit0
X
Status Output
STAT is active low while charging, active
high all other times
STAT blinks while charging, is active low
when finished, active high when disabled
1
X
X
X
X
X
X
X
Bit7
X
X
Bit7
X
Bit6
X
X
Bit6
X
Bit5
0
1
Bit5
X
Bit4
X
X
Bit4
X
Bit3
X
X
Bit3
0
Bit2
X
X
Bit2
0
Bit1
X
X
Bit1
X
Bit0
X
X
Bit0
X
Glitch Filter
Glitch filter enabled
Glitch filter disabled
Fast-charge Timeout
350 min
X
X
X
X
0
1
X
X
699 min
X
X
X
X
1
0
X
X
1398 min
X
X
X
X
1
1
X
X
Disabled
Bit7
X
Bit6
X
Bit5
X
Bit4
X
Bit3
X
Bit2
X
Bit1
0
Bit0
0
Pre-charge Timeout
44 min
X
X
X
X
X
X
0
1
87 min
X
X
X
X
X
X
1
0
175 min
X
X
X
X
X
X
1
1
Disabled
Table 10 – STAT Output – 8-bit (address: 07h) – Non-Volatile & Volatile (mirror)
Bit7
X
Bit6
X
Bit5
X
Bit4
X
Bit3
X
Bit2
0
Bit1
X
Bit0
X
STAT Output Indicator
Battery charge status
X
Bit7
X
X
Bit6
X
X
Bit5
X
X
Bit4
X
X
Bit3
X
1
Bit2
X
X
Bit1
0
X
Bit0
X
Input over-voltage or input under-voltage
Battery over-voltage Behavior
Charger is shutdown
X
X
X
X
X
X
1
X
Charger is not shutdown
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
USB500/100 Control
Device is always limited to USB100 charge
X
X
X
X
X
X
X
0
levels
USB100/500 mode is determined by
Register 31[3]
X
X
X
X
X
X
X
1
Table 11 – Charging Mode – 8-bit (address: 0Ch) – Non-Volatile
Bit7
X
Bit6
X
Bit5
X
Bit4
X
Bit3
X
Bit2
0
Bit1
0
Bit0
X
Charging Mode
Power cycle initiates charging
Power cycle initiates charging only when
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
1
1
0
1
X
X
X
VBATT < VFLT – 220mV
Power cycle initiates charging only when
VBATT < VFLT – 390mV
Power cycle initiates charging only when
VBATT < VFLT – 550mV
Summit Microelectronics, Inc
2129 3.0 2/23/2009
24
SUMMIT [ SUMMIT MICROELECTRONICS, INC. ]
