参数资料
型号: ISP1160BD/01,118
厂商: ST-ERICSSON
元件分类: 总线控制器
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP64
封装: 10 X 10 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-314-2, LQFP-64
文件页数: 21/88页
文件大小: 394K
代理商: ISP1160BD/01,118
Philips Semiconductors
ISP1160
Embedded USB Host Controller
Product data
Rev. 05 — 24 December 2004
28 of 88
9397 750 13963
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
//write 80 (0x50) bytes of data into ATL buffer RAM
for (i
=0;i<wCount;i++)
{
outport(HcDataPort,PTDData[i]);
};
//Check EOT interrupt bit
wData
= HcRegRead(wHcuPInterrupt);
printf("\n HC Interrupt Status
=%xH.\n",wData);
//Check Buffer status register
wData
= HcRegRead(wHcBufferStatus);
printf("\n HC Buffer Status
=%xH.\n",wData);
}
//
// Read HC 16-bit registers
//
unsigned int HcRegRead(unsigned int wIndex)
{ unsigned int wValue;
outport(HcCmdPort,wIndex & 0x7f);
wValue
= inport(HcDataPort);
return(wValue);
}
//
// Write HC 16-bit registers
//
void HcRegWrite(unsigned int wIndex,unsigned int wValue)
{
outport(HcCmdPort,wIndex | 0x80);
outport(HcDataPort,wValue);
}
9.5 HC operational model
Upon power up, the HCD sets up all operational registers (32-bit). The
FSLargestDataPacket eld (bits 30 to 16) of the HcFmInterval register (0DH to read,
8DH to write) and the HcLSThreshold register (11H to read, 91H to write) determine
Table 6:
Run results of the C program example
Observed items
HC not initialized and not in
USBOperational state
HC initialized and in
USBOperational state
Comments
Hc
PInterrupt register
Bit 1 (ATLInt)
0
1
microprocessor must read ATL
Bit 2 (AllEOTInterrupt)
1
transfer completed
HcBufferStatus register
Bit 2 (ATLBufferFull)
1
transfer completed
Bit 5 (ATLBufferDone)
0
1
PTD data processed by HC
USB trafc on USB Bus
no
yes
OUT packets can be seen
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