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參數(shù)資料
| 型號： | GS1560A* |
| 英文描述： | Reclocking deserializer for HD-SDI. SD-SDI & DVB-ASI with loop thru cable driver. 3.3/1.8V supply. |
| 中文描述： | 時鐘重計解串器的HD - SDI的。標(biāo)清SDI |
| 文件頁數(shù)： | 49/55頁 |
| 文件大?。?/td> | 922K |
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GENNUM CORPORATION
27360 - 2
49 of 55
G
3.12 GSPI HOST INTERFACE
The GSPI, or Gennum Serial Peripheral Interface, is a 4-wire
interface provided to allow the host to enable additional
features of the device and /or to provide additional status
information through configuration registers in the GS1560A.
The GSPI comprises a serial data input signal SDIN, serial
data output signal SDOUT, an active low chip select CS,
and a burst clock SCLK.
Because these pins are shared with the JTAG interface
port, an additional control signal pin JTAG/HOST is
provided. When JTAG/HOST is LOW, the GSPI interface is
enabled.
When operating in GSPI mode, the SCLK, SDIN, and CS
signals are provided by the host interface. The SDOUT pin
is a high-impedance output allowing multiple devices to be
connected in parallel and selected via the CS input. The
interface is illustrated in Figure 15.
All read or write access to the GS1560A is initiated and
terminated by the host processor. Each access always
begins with a 16-bit command word on SDIN indicating the
address of the register of interest. This is followed by a 16-
bit data word on SDIN in write mode, or a 16-bit data word
on SDOUT in read mode.
Figure 15 Gennum Serial Peripheral Interface (GSPI)
3.12.1 Command Word Description
The command word is transmitted MSB first and contains a
read/write bit, nine reserved bits and a 6-bit register
address. Set R/W = '1' to read and R/W = '0' to write from
the GSPI.
Command words are clocked into the GS1560A on the
rising edge of the serial clock SCLK. The appropriate chip
select, CS, signal must be asserted low a minimum of 1.5ns
(t
0
in Figure 18 and Figure 19) before the first clock edge to
ensure proper operation.
Each command word must be followed by only one data
word to ensure proper operation.
Figure 16 Command Word
Figure 17 Data Word
SCLK
CS
SDOUT
SDIN
SCLK
CS
SDIN
SDOUT
Application Host
GS1560A
R/W
RSV
RSV
RSV
A0
A1
A2
A3
A4
A5
RSV
RSV
RSV
RSV
RSV
RSV
MSB
LSB
D15
D14
D13
D12
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D11
D10
MSB
LSB
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| GS1561* | Reclocking deserializer for HD-SDI. SD-SDI & DVB-ASI without loop thru cable driver. 3.3/1.8V supply. |
| GS15T48-5 | 15W DC-DC CONVERTER |
| GS15T48 | |
| GS15T5-5.2 | DC-to-DC Voltage Converter |
| GS15T5-52 | 15W DC-DC CONVERTER FOR ECL |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| GS1560A_07 | 制造商:GENNUM 制造商全稱:GENNUM 功能描述:Dual-Rate Deserializer |
| GS1560A_09 | 制造商:GENNUM 制造商全稱:GENNUM 功能描述:HD-LINX II Dual-Rate Deserializer |
| GS1560ACF | 制造商:Rochester Electronics LLC 功能描述: 制造商:Gennum Corporation 功能描述: |
| GS1560ACFE3 | 制造商:Semtech Corporation 功能描述:Reclocking deserializer.Receiver for HD/SD/ASI w/ loop through. LQFP80 |
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