Rainbow-electronics MAX16066 Manual do Utilizador descarregar pdf (Página 22)

12-Channel/8-Channel, Flash-Configurable System

Managers with Nonvolatile Fault Registers

MAX16065/MAX16066

22 _____________________________________________________________________________________

When GPIO1–GPIO8 are configured as general-pur-

pose inputs/outputs, read values from the GPIO_ ports

through r1Eh and write values to GPIO_s through r3Eh.

Note that r3Eh has a corresponding flash register, which

programs the default state of a general-purpose output.

See Table 11 for more information on reading and writing

to the GPIO_.

Fault1 and Fault2

GPIO1–GPIO8 are configurable as dedicated fault out-

puts, Fault1 or Fault2. Fault outputs can assert on one or

more overvoltage, undervoltage, or early warning condi-

tions for selected inputs, as well as the secondary over-

current comparator. Fault1 and Fault2 dependencies are

set using registers r36h to r3Ah. See Table 14. When

a fault output depends on more than one MON_, the

fault output asserts when one or more MON_ exceeds a

programmed threshold voltage. These fault outputs act

independently of the critical fault system, described in

the Critical Faults section.

Table 11. GPIO_ State Registers

Table 12. GPIO_ Configuration Registers

ADDRESS

FLASH

ADDRESS

BIT RANGE DESCRIPTION

1Eh —

[0] GPIO1 input state

[1] GPIO2 input state

[2] GPIO3 input state

[3] GPIO4 input state

[4] GPIO5 input state

[5] GPIO6 input state

[6] GPIO7 input state

[7] GPIO8 input state

3Eh 23Eh

[0] GPIO1 output state

[1] GPIO2 output state

[2] GPIO3 output state

[3] GPIO4 output state

[4] GPIO5 output state

[5] GPIO6 output state

[6] GPIO7 output state

[7] GPIO8 output state

ADDRESS

FLASH

ADDRESS

BIT RANGE DESCRIPTION

3Fh 23Fh

[2:0] GPIO1 configuration

[5:3] GPIO2 configuration

[7:6] GPIO3 configuration (LSB)

40h 240h

[0] GPIO3 configuration (MSB)

[3:1] GPIO4 configuration

[6:4] GPIO5 configuration

[7] GPIO6 configuration (LSB)

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 60 61

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