參數(shù)資料
型號(hào)： EM78612
英文描述： Dual Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 16-QFN
中文描述： USB控制器
文件頁(yè)數(shù)： 5/29頁(yè)
文件大?。?/td> 692K
代理商： EM78612
EM78612
Universal Serial Bus Microcontroller Series
This specification may change without further notice.
13
3/5/2003 (V1.0)
RD (USB Application FIFO Address Register)
Default Value: (0B_0000_0000)
7
6
5
4
3
2
1
0
UAD4
UAD3
UAD2
UAD1
UAD0
RD [0~4]
USB Application FIFO address registers. These five bits are the address pointer
of USB Application FIFO.
RD [5~7]
Undefined registers. The default value is zero.
RE (USB Application FIFO Data Register)
Default Value: (0B_0000_0000)
7
6
5
4
3
2
1
0
UD7
UD6
UD5
UD4
UD3
UD2
UD1
UD0
RE (USB Application FIFO data register) contains the data in the register of which address
is pointed by RD.
RF (Interrupt Status Register )
Default Value: (0B_0000_0000)
7
6
5
4
3
2
1
0
-
Port 5 State
Change_IF
USB Host
Resume_IF
USB
Reset_IF
USB
Suspend_IF
EP0_IF TCC_IF
RF [0]
TCC Overflow interrupt flag. It will be set while TCC overflows, and is cleared by
the firmware.
RF [1]
EndPoint Zero interrupt flag. It will be set when the EM78612 receives Vender
/Customer Command to EndPoint Zero. This bit is cleared by the firmware.
RF [2]
USB Suspend interrupt flag. It will be set when the EM78612 finds the USB
Suspend Signal on USB bus. This bit is cleared by the firmware.
RF [3]
USB Reset interrupt flag. It will be set when the host issues the USB Reset
signal.
RF [4]
USB Host Resume interrupt flag. It is set only under Dual Clock mode when the
USB suspend signal becomes low.
RF [5]
Port 5 State Change interrupt flag. It is set when the Port 5 state changes.
8.2.1.3 Control Registers in Bank 0
Special purpose registers for special control purposes are also available. Except for the
Accumulator (A), these registers must be read and written by special instructions. One of
these registers, CONT, can only be read by the instruction "CONTR" and written by
"CONTW" instruction. The remaining special control registers can be read by the instruction
"IOR" and written by the instruction "IOW."
The following paragraphs only describe the general functions of the control registers. For
more detailed description, refer to Sections 8.8 to 8.10 of this spec.
相關(guān)PDF資料
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