參數(shù)資料
型號(hào)： M66291GP
元件分類： 總線控制器
英文描述： UNIVERSAL SERIAL BUS CONTROLLER, PQFP48
封裝： 7 X 7 MM, 0.50 MM PITCH, PLASTIC, LQFP-48
文件頁數(shù)： 110/126頁
文件大小： 893K
代理商： M66291GP
M66291GP/HP
Rev 1.01 2004.11.01 page 84 of 122
3.2.3
Buffer State and IVAL Bit
(1) Buffer state and IVAL bit of the OUT buffer
The relation between buffer state and IVAL bit is shown in Figure 3.2 when the buffer is set to OUT (set by
the EPi_DIR bit/ISEL bit).
The single/double buffer mode is set by the EPi_DBLB bit. The double buffer mode cannot be set at endpoint 0.
<W hen set to single buffer mode>
CPU bus
Empty
W hen set to O UT buffer
SIE bus
IVAL bit ="0"
Receive
data
Receive data
IVAL bit ="1"
Receive
data
IVAL bit ="0"
Empty
<W hen set to double buffer mode>
Empty
SIE bus
IVAL bit ="0"
Receive
data
Receive data
IVAL bit ="1"
Empty
IVAL bit ="0"
Receive data
Empty
Receive
data
R eceiv e com pletion (Note 2)
Receive
data
Receive data
Empty
Receive data
Empty
IVAL bit ="1"
(EPB_RDY bit is set to "1")
IVAL bit ="0"
IVAL bit ="1"
(EPB_RDY bit is set to "1")
Receive
data
Empty
IVAL bit ="1"
IVAL bit ="0"
IVAL bit ="1"
(EPB_RDYbit is set to"1")
Note 1. R esponse to the host when EP0_PID /EPn_PID bits are set to "01(BUF)".
Note 2. About the receives completion, refer to the follows:
Endpoint 0
CT R W bit of C ontrol T ransfer Control Register
O thers endpoint 0
EPnRW MD bit of EPn C onfiguration R egister
CPU bus
Accessable
Not accessable
Read com pletion
Receiv e com pletion (Note 2)
Read com pletion
SIE side buffer
C PU side buffer
SIE side buffer CPU side buffer
Receive data
IVAL bit ="0"
Empty
IVAL bit ="0"
R esponse (Note 1)
AC K
NAK
AC K
NAK
Response (Note 1)
AC K
NAK
AC K
NAK
AC K
R eceive com pletion (N ote 2)
Figure 3.2 Relation between Buffer State and IVAL Bit (when set to OUT buffer)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M66291GP#201 制造商:Renesas Electronics Corporation 功能描述:IC ASSP USB2.0 DEVICE CONTROLLER 48LQFP
M66291GP#RB0S 功能描述:IC USB CONTROLLER GEN-PUR 48LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標(biāo)準(zhǔn)包裝:4,900 系列:- 控制器類型:USB 2.0 控制器 接口:串行 電源電壓:3 V ~ 3.6 V 電流 - 電源:135mA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:36-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:36-QFN（6x6） 包裝:* 其它名稱:Q6396337A
M66291GPRB0S 制造商:Renesas Electronics Corporation 功能描述:USB2.0 Device Controller,LQFP48
M66291HP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:ASSP (USB2.0 Device Controller)
M66291HP#200D 功能描述:IC USB CONTROLLER GEN-PUR 52VQFN RoHS:否 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標(biāo)準(zhǔn)包裝:4,900 系列:- 控制器類型:USB 2.0 控制器 接口:串行 電源電壓:3 V ~ 3.6 V 電流 - 電源:135mA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:36-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:36-QFN（6x6） 包裝:* 其它名稱:Q6396337A
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