參數(shù)資料
型號(hào)： UPD720012
廠商： NEC Corp.
英文描述： HUB CONTROLLER FOR UNIVERSAL SERIAL BUS
中文描述： 集線器控制器通用串行總線
文件頁數(shù)： 20/36頁
文件大?。?/td> 414K
代理商： UPD720012
20
Data Sheet S13918EJ3V0DS
μ
PD72012
(4/4)
Value
Standard ROM code
product
No.
Field
Size
(Bytes)
Contents
003
004
Mask
ROM code
product
7
bDeviceRemovable
1
Uses a bitmap to show whether or not removable
devices are connected to HUB ports.
“1” shows that the connected device is non-
removable, and “0” shows that it is removable. Set
“1” if a port that is used cannot be connected nor
disconnected using an external circuit.
Note that, if a non-removable device is connected to
a downstream port of the HUB, bit 2 of
wHubCharacteristics field should be set to “1”.
When the number of ports that can be port enabled
is limited by the PVSEL pin setting or Mask ROM
code product settings, set “0” for all ports that are
not port enabled. The meaning of the bitmap is as
follows.
Bit 0:
Bit 1:
Always set to “0”.
If “1”, the device connected to port 1 is
non-removable.
If “1”, the device connected to port 2 is
non-removable.
If “1”, the device connected to port 3 is
non-removable.
If “1”, the device connected to port 4 is
non-removable.
If “1”, the device connected to port 5 is
non-removable.
Bits 7,6: Always set to “0”.
Bit 2:
Bit 3:
Bit 4:
Bit 5:
For a standard ROM code product (003, 004), all
ports are removable.
0x00
0x00
0xXX
8
bPortPwrCtrlMask
1
This field exists for reasons of compatibility with
software written for 1.0 compliant devices. All bits in
this field should be set to 1B.
0xFF
0xFF
0xFF
相關(guān)PDF資料
PDF描述
UPD72012CU HUB CONTROLLER FOR UNIVERSAL SERIAL BUS
UPD72012GB HUB CONTROLLER FOR UNIVERSAL SERIAL BUS
UPD72012CU-XXX HUB CONTROLLER FOR UNIVERSAL SERIAL BUS
UPD72012GB-XXX HUB CONTROLLER FOR UNIVERSAL SERIAL BUS
UPD72012GB-XXX-3B4 HUB CONTROLLER FOR UNIVERSAL SERIAL BUS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UPD720101F1 制造商:NEC Electronics Corporation 功能描述:
UPD720101F1-EA8 制造商:NEC Electronics Corporation 功能描述:
UPD720101F1-EA8 ( PRICE BREAK 250K - 制造商:Renesas Electronics Corporation 功能描述:
UPD720101F1-EA8_NEC 制造商:Renesas Electronics Corporation 功能描述:
UPD720101F1-EA8-A 功能描述:HOST CTLR USB 2.0 144-FBGA RoHS:是 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標(biāo)準(zhǔn)包裝:2,450 系列:- 控制器類型:SPI 總線至 I²C 總線橋接 接口:I²C，串行，SPI 電源電壓:2.4 V ~ 3.6 V 電流 - 電源:11mA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-HVQFN（4x4） 包裝:托盤 配用:568-3511-ND - DEMO BOARD SPI TO I2C 其它名稱:935286452157SC18IS600IBSSC18IS600IBS-ND
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

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

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

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*