參數(shù)資料
型號: L64777
廠商: LSI CORP
元件分類: 消費家電
英文描述: Digital Video Broadcasting(DVB)-Compliant,quadrature amplitude modulation (QAM)Modulator(數(shù)字視頻廣播系統(tǒng)適配的積分調(diào)幅調(diào)制器)
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP120
封裝: 32 MM, PLASTIC, QFP-120
文件頁數(shù): 115/124頁
文件大?。?/td> 988K
代理商: L64777
L64777 DVB QAM Modulator Technical Manual
C-1
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:
Nyquist filter output or interpolator output (normal operation)
FIFO output
Scrambler output
RS encoder output
0b0100:
0b0101:
0b0110:
0b0111:
Interleaver output
M-tuple output
Mapper output
N/A
0b1000:
0b1001:
0b1010:
0b1011:
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]
0b1100:
0b1101:
0b1110:
0b1111:
Virtual FIFO content
Value reserved; do not program
Value reserved; do not program
Value reserved; do not program
test.4:
test.5:
test.6:
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
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