em78p613 ELAN Microelectronics Corp, em78p613 Datasheet - Page 19

• Manufacturer Part Number: em78p613
• Description: Universal Serial Bus Series Microcontroller
• Manufacturer: ELAN Microelectronics Corp

Product Specification (V1.0) 01.09.2009
(This specification is subject to change without further notice)
7.2.2.15 RF (Interrupt Status Register) Default Value: (0B_0000_0000)
RF [0]
RF [1]
RF [2]
RF [3]
RF [4]
RF [5]: (SPI_IF) SPI interrupt flag. Set when data transmission is completed; cleared
RF [ 6] reserved
RF [7]
Resume_IF
USB Host
Bit 7
RF[4]: Port State Change Interrupt Flag
EM78M611
EM78P613
RF [7]: USB Host Resume_IF
In EM78M611, this bit is always ‘1’. It is not for use.
In EM78P613, this bit is available for use.
PS2 Mode – P74/P75/P76/P77 have interrupt function.
P74/P75/P76/P77 all have interrupt function (in USB and PS2 mode)
USB Mode – P76 and P77 DO NOT have interrupt function.
In PS2 Mode, only pins configured as input can cause this interrupt to occur.
These pins (P74, P75, P76 and P77) are compared with the value latched on
the last read of Port 7.
In USB Mode, only P76 and P77 have this function.
TCC Overflow interrupt flag. It will be set while TCC overflows, and is cleared
by firmware.
EndPoint Zero interrupt flag. It will be set when the EM78P613 receives the
Vendor/Customer Command to EndPoint Zero. This bit is cleared by
firmware.
USB Suspend interrupt flag. It will be set when the EM78P613 finds the USB
Suspend Signal on the USB bus. This bit is cleared by firmware.
USB Reset interrupt flag. It will be set when the host issues a USB Reset
signal.
P74/P75 (PS2 only) /P76/P77 (USB and PS2) Port state change interrupt flag.
by software. The interrupt is created after the SPI data is saved to the SRAM.
USB Host Resume interrupt flag. It will be set only in Dual clock mode when
the USB suspend signal becomes low.
Bit 6
−
SPIIF
Bit 5
Port7 state
change_IF
Bit 4
Universal Serial Bus Series Microcontroller
NOTE
NOTE
Reset_IF
Bit 3
USB
Suspend_IF
Bit 2
USB
EP0_IF
Bit 1
EM78P613
TCC_IF
Bit 0
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