MGR10 A/B/C - Revision : I (for 7.0 software revision) 61
PPU Parallel Poll Unconfigure
Parallel Poll is not implemented. This command is ignored.
SPE Serial Poll Enable
This establishes serial poll mode for all responding talker devices on the bus. When they are
addressed to talk, each responding device will return a single 8-bit byte of status from each
device. Devices which recognise this command must have Talker interface capabilities to allow
the device to output the status-byte.
SPD Serial Poll Disable
This terminates serial poll mode for all responding devices, returning the devices to their
normal talker state when they output device-dependent data rather than status information.
MLA My Listen Address
This is sent by a controller to indicate to all other bus devices that it has become a listener.
UNL Unlisten
This unaddresses all current listeners on the bus. Single listeners cannot be unaddressed without
unaddressing all listeners. It is necessary that this command be used to guarantee that only
desired listeners are addressed. The ‘Lstn’ legend is turned off. (Device address 31 is illegal and
is the address sent by UNL to unaddress the device).
MTA My Talk Address
This is sent by a controller to indicate that it will be the talker from now on. All other bus
devices must “un-talk” on receiving this command.
UNT Untalk
This unaddresses the current talker. Sending an unused talk address would accomplish the same
thing. This command is provided for convenience since addressing one talker automatically
unaddresses another. (Device address 31 is illegal and is the address sent by UNT to unaddress
the device). The ‘Talk’ legend is turned off.
PPE Parallel Poll Enable
Parallel Poll is not implemented. This command is ignored.
PPD Parallel Poll Disable
Parallel Poll is not implemented. This command is ignored.
To Next Page
Loading...
Need help?
General
