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7: 12-Channel Correlator
GP4020 GPS Baseband Processor Design Manual 81
Bit
No.
Mnemonic Description Reset
Value
R/W
11
CH11_MISSED_
MEAS_DATA
'1' = one or more sets of measurement data have been missed since the
last read from this register. It is set High by a read from the Code
Phase Counter of the same channel, when the previous value in the
Code Phase Counter has not been read, and is reset by a read from
the MEAS_STATUS_A register or by disabling the channel.
'0' = no missed data.
0R
10 CH10_MISSED_
MEAS_DATA
(as bit 11 but for channel 10) 0 R
9
CH9_MISSED_
MEAS_DATA
(as bit 11 but for channel 9) 0 R
8 CH8_MISSED_
MEAS_DATA
(as bit 11 but for channel 8) 0 R
7 CH7_MISSED_
MEAS_DATA
(as bit 11 but for channel 7) 0 R
6 CH6_MISSED_
MEAS_DATA
(as bit 11 but for channel 6) 0 R
5 CH5_MISSED_
MEAS_DATA
(as bit 11 but for channel 5) 0 R
4
CH4_MISSED_
MEAS_DATA
(as bit 11 but for channel 4) 0 R
3 CH3_MISSED_
MEAS_DATA
(as bit 11 but for channel 3) 0 R
2
CH2_MISSED_
MEAS_DATA
(as bit 11 but for channel 2) 0 R
1 CH1_MISSED_
MEAS_DATA
(as bit 11 but for channel 1) 0 R
0
CH0_MISSED_
MEAS_DATA
(as bit 11 but for channel 0) 0 R
Table 7.30 CORR MEAS_STATUS_A Register
7.6.25
MULTI_CHANNEL_SELECT Register - Write Address Offset 0x1F4
This register is used to define which of the 12-correlator channels can be addressed using accesses from the "Multi
Control" and "Multi Accumulate" addresses (refer to Register map). This may be used to set several channels to
mostly the same conditions. This feature could be used for a parallel search for one satellite. For example:
1) operations such as setting each Carrier DCO to the same frequency;
2) adjust all selected channels by the same value, (such as a Code Slew to shift the code phases together to a
new search area).