ADM1266ACPZ-R7 datasheet(19/62 Pages) AD

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Data Sheet

ADM1266

Rev. A | Page 19 of 62

STATES

The user can configure up to 1023 states to form their desired

state machine. The user can create their virtual state machine

using the Analog Devices Power Studio™ software. If there is only

one device, the virtual state machine and the state machine

configured in the device are identical. If multiple devices are

connected together, the software compiles the virtual state

machine and programs each device with the corresponding

state machine and IDB messages. This procedure is transparent

to the user, meaning that the user does not need to individually

create a state machine for each ADM1266 device. After the user

creates the virtual state machine in the software, the software

automatically creates the corresponding state machine for each

device.

For example, the user creates a virtual state machine in the

software consisting of 20 states. For a single device, the device

has 20 states. For multiple devices, each device has 20 states. All

the devices move through the different states in synchronization

and work in parallel.

Breakpoints and Debug Mode

During development, the user can set the ADM1266 to be in

debug mode. The user can set breakpoints for each of the

1023 states as desired. When the ADM1266 enters a state, if the

breakpoint for the state is enabled, the SE pauses at the start of

the state. The SE can resume by sending a start message using

GO_COMMAND (Register 0xD8). When resuming, the SE

executes the actions in that state, which is helpful in pausing the

SE at the desired breakpoints without modifying the configured

state machine. In normal mode, the breakpoints are ignored.

Stop, Start, and Reset

At any point, GO_COMMAND (Register 0xD8) can be issued

to the ADM1266 to start or stop the SE. This command can also

be used to reset the state machine to State 0. By default at power-up,

the SE is in start mode and does not need a start command. If

multiple devices are connected, GO_COMMAND (Register 0xD8)

must be sent to all the devices as part of the group command

protocol.

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