参数资料
型号: M66291GP
元件分类: 总线控制器
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP48
封装: 7 X 7 MM, 0.50 MM PITCH, PLASTIC, LQFP-48
文件页数: 99/128页
文件大小: 928K
代理商: M66291GP
M66291GP/HP
Rev 1.01 2004.11.01 page 70 of 122
2.34 DMAn_Transaction Count Registers (n=0~1)
DMA0_Transaction Count Register (DMA0_TRN_COUNT)
<Address : H’4E>
DMA1_Transaction Count Register (DMA1_TRN_COUNT)
<Address : H’56>
b15
14
13
12
11
10
9876
54321
b0
TRNCNT
0000
000000
0
00000
----
------
----
------
<H/W reset : H'0000>
<S/W reset : ->
<USB bus reset : ->
b
Bit name
Function
R
W
15~0
TRNCNT
Transaction Count
<TREN bit = "0">
Packet count that completes the receiving
(behaving as the compare register)
<TREN bit = "1">
Read
The number of the received packets (behaving as the current
register)
Write
Packet count that completes the receiving
(behaving as the compare register)
(1) TRNCNT (Transaction Count) Bits (b15~b0)
This register is used under the following conditions:
When set to OUT buffer (EPi_DIR bit = ”0”).
When set to continuous receive mode (EPi_RWMD bit = ”1”).
When set to bulk transfer mode (EPi_TYP bits = ” 01”)
When accessing using Dn_FIFO Data Register.
With the transaction count function set to be enabled (TREN bit = “1”), the following conditions are added to
the buffer receive completion condition. In case of the receive completion, refer to the “EPi_RWMD bit of the
EPi Configuration Register 0”.
When the value set by this register conforms to the packet receive count.
(Conformity between current register and compare register; See below.)
This register is composed of two registers as follows:
Current register
:Counting of the received packet number (counts up at the TREN bit = “1”)
Compare register :The value that completes the receiving
It is necessary to clear the TNCNT bits as the current register to “0” by writing “1” to the TRCLR bit before the
next transfer.
相关PDF资料
PDF描述
M68HC08AZ0 8-BIT, EEPROM, 8 MHz, MICROCONTROLLER, PQFP100
M69030 GRAPHICS PROCESSOR, PBGA278
MA4T85633 C BAND, Si, NPN, RF SMALL SIGNAL TRANSISTOR
MA4T85600 Si, RF POWER TRANSISTOR
MA4T85635 C BAND, Si, NPN, RF SMALL SIGNAL TRANSISTOR
相关代理商/技术参数
参数描述
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 类别:集成电路 (IC) >> 接口 - 控制器 系列:- 标准包装:4,900 系列:- 控制器类型:USB 2.0 控制器 接口:串行 电源电压:3 V ~ 3.6 V 电流 - 电源:135mA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:36-VFQFN 裸露焊盘 供应商设备封装:36-QFN(6x6) 包装:* 其它名称:Q6396337A
M66291GPRB0S 制造商:Renesas Electronics Corporation 功能描述:USB2.0 Device Controller,LQFP48
M66291HP 制造商:RENESAS 制造商全称: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 类别:集成电路 (IC) >> 接口 - 控制器 系列:- 标准包装:4,900 系列:- 控制器类型:USB 2.0 控制器 接口:串行 电源电压:3 V ~ 3.6 V 电流 - 电源:135mA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:36-VFQFN 裸露焊盘 供应商设备封装:36-QFN(6x6) 包装:* 其它名称:Q6396337A