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Chapter 5, Programming the Cellular Adapter
Status Registers for DCCH Call Processing
Programming the Cellular
Adapter
Status Registers for DCCH Call Processing
The status registers which can be queried for DCCH are the same as for AMPS.
Refer to the HP 8920 Test Set’s Programmer’s Guide for more information.
The Status Register Group for Call Processing consists of four 16-bit registers:
• The Condition Register indicates the status of specific Test System conditions, such as
whether it has successfully connected to the mobile.
Table 5 lists the conditions and
values associated with the Call Control annunciators. (See
“Example program for the
Condition Register” on page 156
)
• Transition Filters are used to specify when changes to the Condition Register get passed
to the Event Register (always, never, or by a high-to-low or low-to-high transition).
• The Event Register indicates what events have occurred since it was last cleared; it is a
read-only register to track events.
• The Enable Register specifies what conditions in the Event register are allowed to be
passed to the Status Byte.
There is also a Summary Message for this Status Register Group.
260
Table 5 Partial Description of Condition Register Bit assignments (Bits 0-5 only)
Bit
Number
Binary
Weighting
Condition Comment
5 32 Connect state bit state mirrors the condition of the annunciator on the display
(1=ON, 0=OFF)
4 16 Access state bit state mirrors the condition of the annunciator on the display
(1=ON, 0=OFF)
3 8 Page state bit state mirrors the condition of the annunciator on the display
(1=ON, 0=OFF)
2 4 unused
1 2 Register state bit state mirrors the condition of the annunciator on the display
(1=ON, 0=OFF)
0 1 Active state bit state mirrors the condition of the annunciator on the display
(1=ON, 0=OFF)