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© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
User manual
Rev. 01 — 15 August 2005
221
Philips Semiconductors
UM10139
Volume 1
Chapter 14: USB Device Controller
14.8.26 USB
System
Error Interrupt Status register (USBSysErrIntSt -
0xE009 00B8)
If a system error (AHB bus error) occurs when transferring the data or when fetching or
updating the DD this interrupt bit is set. The USBSysErrIntSt is a read only register.
14.8.27 USB
System
Error Interrupt Clear register (USBSysErrIntClr -
0xE009 00BC)
Writing 1 into the register will clear the corresponding interrupt from the System Error
Interrupt Status register. Writing 0 will not have any effect. The USBSysErrIntClr is a write
only register.
14.8.28 USB
System
Error Interrupt Set register (USBSysErrIntSet -
0xE009 00C0)
Writing 1 into the register will set the corresponding interrupt from the System Error
Interrupt Status register. Writing 0 will not have any effect. The USBSysErrIntSet is a write
only register.
Table 221: USB New DD Request Interrupt Set register (USBNDDRIntSet - address
0xE009 00B4) bit description
Bit
Symbol
Value
Description
Reset value
31:0
EPxx
Set endpoint xx (0
≤
xx
≤
31) new DD interrupt request. 0
0
Ne effect.
1
Set the EPxx new DD interrupt request in the
USBNDDRIntSt register.
Table 222: USB System Error Interrupt Status register (USBSysErrIntSt - address
0xE009 00B8) bit description
Bit
Symbol
Value
Description
Reset
value
31:0
EPxx
Endpoint xx (0
≤
xx
≤
31) System Error Interrupt request.
0
0
There is no System Error Interrupt request for endpoint xx.
1
There is a System Error Interrupt request for endpoint xx.
Table 223: USB System Error Interrupt Clear register (USBSysErrIntClr - address
0xE009 00BC) bit description
Bit
Symbol
Value
Description
Reset
value
31:0
EPxx
Clear endpoint xx (0
≤
xx
≤
31) System Error Interrupt request.
0
0
Ne effect.
1
Clear the EPxx System Error Interrupt request in the
USBSysErrIntSt register.