EMC12 ETC2 [List of Unclassifed Manufacturers], EMC12 Datasheet - Page 24

• Manufacturer Part Number: EMC12
• Description: Audio Interface for the EmPack System
• Manufacturer: ETC2 [List of Unclassifed Manufacturers]

The TDM subsystem for a module is enabled or disabled with the following two functions:
An application can determine if the TDM subsystem is currently enabled and if the hardware map is
current using the following functions:
1.3.8.2 TDM Map Functions
The API maintains a software copy of the TDM map for each module. Incremental modifications to the
map are made only to the software copy. The active, hardware copy of the map is updated when
specified and becomes active at the next TDM frame boundary. The TDM Map for a module is cleared
using the following function:
09 Jan 2006
The TDM subsystem is initially disabled when the Empack first powers up and will also be
disabled after a call to the EmInitModule or EmInitEmpack functions. The EmStartTdm
function will also updates the hardware TDM map if any changes have been made to the API’s
software copy since the last time the Map was updated.
Both of these functions store their result (0 for no or 1 for yes) in the integer pointed to by the
Status argument.
This function clears both the software and hardware copy of the TDM map. The cleared map
becomes active on the next TDM frame boundary. The TDM map is also cleared by the
EmInitModule and EmInitEmpack functions if they are called with the EM_INIT_FORCED
option. On power-up the TDM map contents are undefined so it is necessary to call one of these
functions to clear the TDM map before creating the desired map.
int
EmStartTdm (
)
int
EmIsTdmStarted (
)
int
EmClearTdmMap (
)
MODULE_HANDLE Module
MODULE_HANDLE Module,
int *Status
MODULE_HANDLE Module
Communication Automation Corporation
EMC12 Hardware Reference Manual
int
EmStopTdm (
)
int
EmIsTdmMapCur (
)
MODULE_HANDLE Module
MODULE_HANDLE Module,
int *Status
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