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PMC-Sierra, Inc.
PM5349 S/UNI-QUAD
DATASHEET
PMC-971239 ISSUE 6 SATURN USER NETWORK INTERFACE (155-QUAD)
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
157
Register 0x83: TXCP Interrupt Enable/Status
Bit Type Function Default
Bit 7 R/W TPRTYE 0
Bit 6 R/W FOVRE 0
Bit 5 R/W TSOCE 0
Bit 4 Unused X
Bit 3 Unused X
Bit 2 R TPRTYI X
Bit 1 R FOVRI X
Bit 0 R TSOCI X
TSOCI:
The TSOCI bit is set high when the TSOC input is sampled high during any
position other than the first word of the selected data structure. The write
address counter is reset to the first word of the data structure when TSOC is
sampled high. This bit is reset immediately after a read to this register.
FOVRI:
The FOVRI bit is set high when an attempt is made to write into the FIFO
when it is already full. This bit is reset immediately after a read to this register
TPRTYI:
The TPRTYI bit indicates if a parity error was detected on the TDAT input bus.
When logic one, the TPRTYI bit indicates a parity error over the active TDAT
bus. This bit is cleared when this register is read. Odd or even parity is
selected using the TPTYPE bit.
TSOCE:
The TSOCE bit enables the generation of an interrupt when the TSOC input is
sampled high during any position other than the first word of the selected data
structure. When TSOCE is set to logic one, the interrupt is enabled.
FOVRE:
The FOVRE bit enables the generation of an interrupt due to an attempt to
write the FIFO when it is already full. When FOVRE is set to logic one, the
interrupt is enabled.