參數(shù)資料
型號(hào)： AT43USB320A-AC
廠商： ATMEL CORP
元件分類： 微控制器/微處理器
英文描述： Full-speed USB Microcontroller with an Embedded Hub
中文描述： 8-BIT, 12 MHz, RISC MICROCONTROLLER, PQFP100
封裝： 14 X 14 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, MS-026AED, LQFP-100
文件頁(yè)數(shù)： 92/115頁(yè)
文件大?。?/td> 722K
代理商： AT43USB320A-AC
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92
AT43USB320A
1443E–USB–4/04
Hub Port Status
Register
The bits in this register are used by the microcontroller firmware when reporting a port's status
through the Port Status Field, wPortStatus. Bits 3 (POCI) and 5 (PPSTAT) are used by the
USB hardware and are the only two bits that the firmware should set or clear. All other bits
should not be modified by the firmware.
Hub Port Status Register – HPSTAT1:5
Bit 7 – Reserved
This bit is reserved in the AT43USB320A and will read as zero.
Bit 6 – LSP: Low-speed Device Attached
0 = Full-speed device attached to this port
1 = Slow-speed device attached to this port
Set to 0 for Port 1 (full-speed only). Set and cleared by the hardware upon detection of device
at EOF2.
Bit 5 – PPSTAT: Port Power Status
0 = Port is powered OFF
1 = Port is powered ON
Set to 1 for Port 1. Set and cleared based on present status of port power.
Bit 4 – PRSTAT: Port Reset Status
0 = Reset signaling not asserted
1 = Reset signaling asserted
Set and cleared by the hardware as a result of initiating a port reset by Port Control Register.
Bit 3 – POCI: Port Overcurrent Indicator
0 = Power normal
1 = Overcurrent exist on port
Set to 0 for Port 1. Set and cleared by firmware upon detection of an overcurrent or removal of
an overcurrent.
Bit 2 – PSSTAT: Port Suspend Status
0 = Port not suspended
1 = Port suspended
Set and cleared by the hardware as controlled through Port Control Register.
Bit 1 – PESTAT: Port Enable Status
0 = Port is disabled
Bit
7
6
5
4
3
2
1
0
Port1 $1FB8
–
LSP
PPSTAT
PRSTAT
POCI
PSSTAT
PESTAT
PCSTAT
HPSTAT1
Port2 $1FB9
–
LSP
PPSTAT
PRSTAT
POCI
PSSTAT
PESTAT
PCSTAT
HPSTAT2
Port3 $1FBA
–
LSP
PPSTAT
PRSTAT
POCI
PSSTAT
PESTAT
PCSTAT
HPSTAT3
Port4 $1FBB
–
LSP
PPSTAT
PRSTAT
POCI
PSSTAT
PESTAT
PCSTAT
HPSTAT4
Port5 $1FBC
–
LSP
PPSTAT
PRSTAT
POCI
PSSTAT
PESTAT
PCSTAT
HPSTAT5
Read/Write
R
R
R/W
R
R/W
R
R
R
Initial Value
0
0
0
0
0
0
0
0
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT43USB321 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Full-speed USB Hub/Function Microcontroller
AT43USB324AC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:KEYBOARD CONTROLLER
AT43USB324YC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:KEYBOARD CONTROLLER
AT43USB325 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Missed Watchdog Timer Reset
AT43USB325_05 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Multimedia USB Keyboard Controller with Embedded Hub
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