L64777 LSI Logic Corporation, L64777 Datasheet - Page 115
L64777
Manufacturer Part Number
L64777
Description
DVB Qam Modulator
Manufacturer
LSI Logic Corporation
Datasheet
1.L64777.pdf
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Appendix C
Monitoring Device
Internal Signals
The programming of the test register (14) allows monitoring of the
device’s internal signals. Depending on the programming of the test
register bits (Register 15), the following signals are observable on the
DIG_Q[9:0] pins:
TEST[3:0]
0b0000:
0b0001:
0b0010:
0b0011:
0b0100:
0b0101:
0b0110:
0b0111:
0b1000:
0b1001:
0b1010:
0b1011:
0b1100:
0b1101:
0b1110:
0b1111:
test.4:
test.5:
test.6:
L64777 DVB QAM Modulator Technical Manual
Nyquist filter output or interpolator output (normal operation)
FIFO output
Scrambler output
RS encoder output
Interleaver output
M-tuple output
Mapper output
N/A
Interpolator control
NCO step bit [23:16] on DIG_Q[7:0]
NCO step bit [15:8] on DIG_Q[7:0]
NCO step bit [7:0] on DIG_Q[7:0]
Virtual FIFO content
Value reserved; do not program
Value reserved; do not program
Value reserved; do not program
Set to 1 for power-down mode; after reset, this is 0
Set to 1 for power-down mode; after reset, this is 0
Set to 1 for power-down mode; after reset, this is 0
C-1
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