參數(shù)資料
型號: L64781
廠商: LSI CORP
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP100
封裝: PLASTIC, QFP-100
文件頁數(shù): 155/164頁
文件大?。?/td> 2003K
代理商: L64781
5-20
Registers
5.4.1 TPS Register Implementation
Internally, there are three separate TPS registers:
Active TPS register
Next TPS register
Received TPS register
The active TPS register contains the current mode of the DTTV
demodulator.
The next TPS register is written to by writing to the TPS register in the
register map. When the “change mode” command is issued, the next
TPS register is copied into the active TPS register, and this becomes the
current mode of the demodulator.
The received TPS register contains a copy of the last valid TPS received
in the input signal. This register is read by reading from the TPS register
in the register map. If the “automode enable” bit is set, then every time
a valid TPS is received and a super-frame boundary is detected, the
demodulator copies the contents of the received TPS register into the
active TPS register, changing the mode of the DTTV receiver if the
received TPS changes.
If the received TPS and the current mode of the DTTV demodulator
differ, the “TPS info change” bit is asserted HIGH for one CLK18 clock
cycle. When the “TPS info change” interrupt is enabled and this event
occurs, the DTTV demodulator generates an interrupt to the external
microcontroller.
The rule for the TPS information change applies to all TPS data bits
except the frame number, which is updated every frame. A detailed
implementation of the TPS registers appears in Figure 5.3.
l64781.book Page 20 Friday, January 19, 2001 1:28 PM
相關PDF資料
PDF描述
L6561 0.7 A POWER FACTOR CONTROLLER, PDIP8
L6566ATR 0.8 A POWER FACTOR CONTROLLER WITH POST REGULATOR, 300 kHz SWITCHING FREQ-MAX, PDSO16
L6605D SPECIALTY CONSUMER CIRCUIT, PDSO20
L6605 SPECIALTY CONSUMER CIRCUIT, PDIP18
L6660 SPECIALTY CONSUMER CIRCUIT, PDSO24
相關代理商/技術參數(shù)
參數(shù)描述
L64782 制造商:未知廠家 制造商全稱:未知廠家 功能描述:L64782 Single-Chip COFDM Receiver
L6480 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:The L6480, realized in analog mixed signal technology, is an advanced fully integrated solution suitable for driving two-phase bipolar stepper motors with microstepping.
L64801GC-20 制造商:未知廠家 制造商全稱:未知廠家 功能描述:32-Bit Microprocessor
L64801GC-25 制造商:未知廠家 制造商全稱:未知廠家 功能描述:32-Bit Microprocessor
L64801GM-20 制造商:未知廠家 制造商全稱:未知廠家 功能描述:32-Bit Microprocessor