MAX1601 Maxim, MAX1601 Datasheet - Page 13

• Manufacturer Part Number: MAX1601
• Description: Dual-Channel CardBus and PCMCIA Power Switches with SMBus Serial Interface
• Manufacturer: Maxim

Table 3. Command Format for Channel B Write Operations (address 1010001 or 1010011)
Table 4. Read Format for Interrupt Pointer Address (0001100)
Table 5. Read Format for Power Switch Address (1010000 or 1010010)
7 (MSB)
7 (MSB)
7 (MSB)
0 (LSB)
0 (LSB)
0 (LSB)
Power Switches with SMBus™ Serial Interface
BIT
BIT
BIT
6
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
CATFAULT
VPPBPGM
SIG/DUAL
VCCBHIZ
VCCBON
VCCB3/5
VPPBHIZ
VPPBON
OP/SUS
FAULT1
FAULT2
FAULT3
FAULT4
NAME
NAME
NAME
ADD7
ADD6
ADD5
ADD4
ADD3
ADD2
ADD1
ADD0
RFU
RFU
RFU
______________________________________________________________________________________
POR STATE
POR STATE
POR STATE
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Dual-Channel CardBus and PCMCIA
Operate/suspend bit. Selects which latch receives data: high = operation,
low = suspend.
Turns on VCCB when high, pulls VCCB to GND when low.
If VCCB is on, a high connects VY to VCCB, and a low connects VX to VCCB.
Puts VCCB in a high-impedance state when high. Overrides VCCBON.
Turns on VPPB when high, pulls VPPB to GND when low.
If VPPB is on, a high connects VPPB to 12INB, and a low connects VPPB to VCCB.
Puts VPPB in a high-impedance state when high. Overrides VPPBON.
Reserved for future use.
ADD7 to ADD1 provide a return address for any interrupt query. For these devices, the
return addresses are:
1010000 = Channel A, ADD = low
1010001 = Channel B, ADD = low
1010010 = Channel A, ADD = high
1010011 = Channel B, ADD = high
LATCHED?
Y
Y
Y
Y
Y
N
N
N
Indicates catastrophic (thermal or undervoltage lockout) fault when high.
Indicates VCCA overcurrent/undervoltage lockout when high.
Indicates VPPA overcurrent/undervoltage lockout when high.
Indicates VCCB overcurrent/undervoltage lockout when high.
Indicates VPPB overcurrent/undervoltage lockout when high.
Indicates dual part (single-channel devices would read 1).
Reserved for future use.
Reserved for future use.
FUNCTION
FUNCTION
FUNCTION
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