EM78M612
Universal Serial Bus Microcontroller Series
RD (USB Application FIFO Address Register) Default Value: (0B_0000_0000)
7
0
6
0
5
0
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
Low
High
Port 5 State USB Host
USB
USB
EP0_IF TCC_IF
Signal_IF
Signal_IF Change_IF Resume_IF Reset_IF Suspend_IF
RF [0]
TCC Overflow interrupt flag. It will be set while TCC overflows, and is cleared by
the firmware.
RF [1]
RF [2]
RF [3]
RF [4]
RF [5]
EndPoint Zero interrupt flag. It will be set when the EM78M612 receives Vender
/Customer Command to EndPoint Zero. This bit is cleared by the firmware.
USB Suspend interrupt flag. It will be set when the EM78M612 finds the USB
Suspend Signal on USB bus. This bit is cleared by the firmware.
USB Reset interrupt flag. It will be set when the host issues the USB Reset
signal.
USB Host Resume interrupt flag. It is set only under Dual Clock mode when the
USB suspend signal becomes low.
Port 5 State Change interrupt flag. It is set when the Port 5 state changes.
RF [6, 7] High/Low signal Counter interrupt flag. These two flags are used for pattern
detecting application.
R10~R1F are General purpose registers. These registers can be used no matter what Bank
Selector is. There are 3 banks(BK0~BK2) R20~R3F General purpose registers, Select by
R4 [6 7].
This specification may change without further notice.
2004/4/28 V1.1
15
ELAN [ ELAN MICROELECTRONICS CORP ]
