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S/UNI-QUAD
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
152
TCALEVEL0:
The active high TCA (and DTCA[x]) level 0 bit, TCALEVEL0 determines what
output TCA (and DTCA[x]) indicates when it transitions low. When
TCALEVEL0 is set to logic one, output TCA (and DTCA[x]) indicates that the
transmit FIFO is full and can accept no more writes. When TCALEVEL0 is set
to logic zero, output TCA (and DTCA[x]) indicates that the transmit FIFO is
near full.
TPTYP:
The TPTYP bit selects even or odd parity for input TPRTY. When set to logic
one, input TPRTY is the even parity bit for the TDAT input bus. When set to
logic zero, input TPRTY is the odd parity bit for the TDAT input bus. Reserved
The reserved bits must be programmed to logic zero for proper operation.