L64704 LSI Logic Corporation, L64704 Datasheet - Page 52

• Manufacturer Part Number: L64704
• Description: Satellite Decoder Technical Manual 5/97
• Manufacturer: LSI Logic Corporation

3.5
Group 3
Registers
Table 3.3
Group 3 Register Map
3-20
APR
10
11
0
1
2
3
4
5
6
7
8
9
Demod_
SNR
D7
Reserved
Reserved
Reserved
XCTR_IN
Group 3 consists of a number of internal status registers that are used
for diagnostics and performance evaluation purposes. The registers are
updated every OCLK cycle. When the microcontroller reads the register,
the current information is buffered in a special purpose buffer that stores
the value of the respective register until the end of the read operation.
The L64704 clears all the bits in the Group 3 registers to zero after a
software or a hardware reset.
Table 3.3
L64704 Registers
D6
Reed-Solomon Uncorrected Error Count High Byte, UEC[15:0]
Reed-Solomon Uncorrected Error Count Low Byte, UEC[7:0]
Reed-Solomon Corrected Error Count High Byte, CEC[15:8]
Reed-Solomon Corrected Error Count Low Byte, CEC[7:0]
Viterbi Bit Error Rate Count High Byte, VBERC[15:8]
Measured Carrier VCO Frequency, CAR_VCOF[7:0]
Viterbi Bit Error Rate Count Low Byte, VBERC[7:0]
CAR_LCF
shows the addresses and fields of the Group 3 registers.
AGC Loop Voltage Meter, PWR_LVL[7:0]
D5
Measured Carrier VCO Frequency, CAR_VCOF[13:8]
CAR_LC
D4
RQ Readback, RQ[5:0]
CLK_LCF
RI Readback, RI[5:0]
D3
D2
S3
D1
S2
D0
S1