參數(shù)資料
型號: GS1532-CF
廠商: Gennum Corporation
英文描述: GS1532 HD-LINX-TM II Multi-Rate Serializer
中文描述: GS1532的HD - LINX進程,商標(biāo)第二多速率串行器
文件頁數(shù): 42/52頁
文件大小: 512K
代理商: GS1532-CF
GS1532 Data Sheet
21498 - 6
June 2005
42 of 52
3.10 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 GS1532.
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. The burst clock
must have a duty cycle between 40% and 60%.
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 the
Figure 3-5
below.
All read or write access to the GS1532 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 3-5: Gennum Serial Peripheral Interface (GSPI)
3.10.1 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 GS1532 on the rising edge of the serial clock
SCLK. The appropriate chip select signal, CS, must be asserted low a minimum of
1.5ns (t
0
in
Figure 3-8
and
Figure 3-9
) before the first clock edge to ensure proper
operation.
Each command word must be followed by only one data word to ensure proper
operation.
SCLK
CS
SDOUT
SDIN
SCLK
CS
SDIN
SDOUT
Application Host
GS1532
相關(guān)PDF資料
PDF描述
GS1532-CFE3 GS1532 HD-LINX-TM II Multi-Rate Serializer
GS1535-CFU GS1535 HD-LINX II-TM Multi-Rate SDI Automatic Reclocker
GS1535-CFUE3 GS1535 HD-LINX II-TM Multi-Rate SDI Automatic Reclocker
GS1535A GS1535A / GS9065A HD-LINX-R II Multi-Rate SDI Automatic Reclocker
GS1535ACFUE3 GS1535A / GS9065A HD-LINX-R II Multi-Rate SDI Automatic Reclocker
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
GS1532-CFE3 制造商:Gennum Corporation 功能描述:Multi Rate Serializer 80-Pin LQFP
GS1535 制造商:GENNUM 制造商全稱:GENNUM 功能描述:GS1535 HD-LINX II-TM Multi-Rate SDI Automatic Reclocker
GS1535A 制造商:GENNUM 制造商全稱:GENNUM 功能描述:Multi-Rate SDI Automatic Reclocker
GS1535A_06 制造商:GENNUM 制造商全稱:GENNUM 功能描述:Multi-Rate SDI Automatic Reclocker
GS1535ACFUE3 制造商:GENNUM 制造商全稱:GENNUM 功能描述:Multi-Rate SDI Automatic Reclocker