參數(shù)資料
型號(hào)： CLC030VEC
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 消費(fèi)家電
英文描述： SMPTE 292M/259M Digital Video Serializer with Video and Ancilliary Data FIFOs and Integrated Cable Driver
中文描述： SPECIALTY CONSUMER CIRCUIT, PQFP64
封裝： TQFP-64
文件頁(yè)數(shù)： 21/29頁(yè)
文件大?。?/td> 329K
代理商： CLC030VEC
Device Operation
(Continued)
out-of-band frequency products which can be produced by
abrupt transitions in the chroma and luma data when fed to
D-to-A converters and picture monitors. The default condi-
tion of this bit is reset (off).
I/O PIN 0 THROUGH 7 CONFIGURATION REGISTERS
(Addresses 0Fh through 16h)
The
Multi-function I/O Bus Pin Configuration
registers are
used to map the bits of the multi-function I/O port to selected
bits of the Configuration and Control Registers. Table 6
details the available Configuration and Control register bit
functions that may be mapped to the port and their corre-
sponding mapping addresses.
Pin
#
SEL[5]
in each register
indicates whether the port pin is input or output. The port pin
will be an input when this bit is set and an output when reset.
Input-only functions may not be configured as outputs and
vice versa. The remaining lower-order five address bits dis-
tinguish the particular function.
Example:
Program, via the AD port, I/O port bit 0 as output
for the CRC Luma Error bit in the control registers.
1.
Set
ANC/CTRL
to a logic-low.
2.
Set
RD/WR
to a logic-low.
3.
Present 00Fh to
AD[9:0]
as the
I/O PIN 0 CONFIG
register address.
4.
Toggle
ACLK
.
5.
Present 310h to
AD[9:0]
as the register data, the bit
address of the CRC Luma Error bit in the control regis-
ters.
6.
Toggle
ACLK
.
TEST MODE 0 REGISTER (Address 55h)
The four bits of this register are intended for use as test
mode functions. They are not normal operating modes. The
bits may be set (enabled) or reset (disabled) by writing to the
register. Reading this register sets (enables) all bits to their
default ON condition.
The
Scrambler_Enable
bit enables operation of the SMPTE
scrambler function. This bit is normally ON.
The
NRZI_Enable
bit enables operation of the NRZ-to-NRZI
conversion function. This bit is normally ON.
The
LSB_Clipping
bit enables operation of the LSB clipping
function. This bit is normally ON.
The
Sync_Detect_Enable
bit enables operation of the TRS
detector function. This bit is normally ON.
C
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