參數(shù)資料
型號： SII3124ACBHU
元件分類： 總線控制器
英文描述： PCI BUS CONTROLLER, PBGA364
封裝： 21 X 21 MM, 1 MM PITCH, GREEN, BGA-364
文件頁數(shù)： 84/88頁
文件大?。?/td> 592K
代理商： SII3124ACBHU
PCI-X to Serial ATA Controller
Data Sheet
Silicon Image, Inc.
2006 Silicon Image, Inc.
SiI-DS-0160-C
85
9 Flash, GPIO, EEPROM, and I
2C Programming
9.1 Flash Memory Access
The SiI3124 supports an external Flash memory device of up to 4 Mbits (512 Kbytes) in capacity. Access to the Flash
memory is available using either PCI Direct Access or Register Access.
9.1.1
PCI Direct Access
Access to the Expansion Rom is enabled by setting bit 0 in the Expansion Rom Base Address register at Offset 30h of the PCI
Configuration Space. When this bit is set, bits [31:19] of the same register are programmable by the system to set the base
address for all Flash memory accesses. Read and write operations with the Flash memory are initiated by Memory Read and
Memory Write commands on the PCI bus. Accesses may be as Bytes, Words, or DWords.
9.1.2
Register Access
This type of Flash memory access is carried out through a sequence of internal register read and write operations. The proper
programming sequences are detailed below.
9.1.2.1
Flash Write Operation
Verify that Flash Address register bit 25 (Mem Access Start) is zero. The bit is one when a memory access is in progress.
It is zero when the memory access is complete and ready for another operation.
Program the write address for the Flash memory access. The address field is bits [18:0] in the Flash Address register.
Program the write data for the Flash memory access. The data field is bits [7:0] in the Flash Memory Data register.
Program Flash Address register bit 24 (Mem Access Type) to zero for a memory write.
Initiate the Flash memory access by setting bit 25 in the Flash Address register.
9.1.2.2
Flash Read Operation
Verify that Flash Address register bit 25 (Mem Access Start) is zero. The bit is one when a memory access is in progress.
It is zero when the memory access is complete and ready for another operation.
Program the read address for the Flash memory access. The address field is bits [18:0] in the Flash Address register.
Program Flash Address register bit 24 (Mem Access Type) to one for a memory read.
Initiate the Flash memory access by setting bit 25 in the Flash Address register.
Verify that Flash Address register bit 25 (Mem Access Start) is clear. The bit is one when a memory access is in progress.
It is zero when the memory access is complete.
Read the data from bits [7:0] in the Flash Memory Data register.
相關(guān)PDF資料
PDF描述
SII3512ECTU128 PCI BUS CONTROLLER, PQFP128
SII3531ACNU PCI BUS CONTROLLER, QCC48
SIO10N268-NU MULTIFUNCTION PERIPHERAL, PQFP128
SIS300 GRAPHICS PROCESSOR, PBGA365
SK12430PJT 800 MHz, OTHER CLOCK GENERATOR, PQCC28
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SII3132 制造商:SILICONIMAGE 制造商全稱:SILICONIMAGE 功能描述:PCI Express to 2-Port Serial ATA II Host Controller
SII3132CNU 制造商:Silicon Image Inc 功能描述:PCI Express to Serial ATA Controller 88-Pin QFN
SII3512 制造商:SILICONIMAGE 制造商全稱:SILICONIMAGE 功能描述:PCI to Serial ATA Controller
SII3512ECTU128 制造商:Silicon Image Inc 功能描述:PCI to Serial ATA Controller 128-Pin TQFP 制造商:Silicone Image 功能描述:
SII3531 制造商:SILICONIMAGE 制造商全稱:SILICONIMAGE 功能描述:SteelVine⑩ Host Controller
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*