PMC-Sierra, Inc.
PRELIMINARY
PM5381 S/UNI-2488
DATASHEET
PMC-2000489
ISSUE 1
SATURN USER NETWORK INTERFACE FOR 2488 MBIT/S
Function
Pin Name
Type
Pin
No.
The UTOPIA transmit cell data (TDAT[31:0]) bus carries the
ATM cell octets that are written to the transmit FIFO. TDAT[31:0]
is considered valid only when TENB is simultaneously asserted.
TDAT[31]
TDAT[30]
TDAT[29]
TDAT[28]
TDAT[27]
TDAT[26]
TDAT[25]
TDAT[24]
TDAT[23]
TDAT[22]
TDAT[21]
TDAT[20]
TDAT[19]
TDAT[18]
TDAT[17]
TDAT[16]
TDAT[15]
TDAT[14]
TDAT[13]
TDAT[12]
TDAT[11]
TDAT[10]
TDAT[9]
Input
B5
D7
A5
B6
C7
D8
A6
B7
D9
A7
B8
C9
A8
B9
C10
D11
B10
C11
D12
A10
C12
A11
D13
B12
C13
A12
B13
D14
C14
B14
A14
C15
TDAT[31:0] is sampled on the rising edge of TFCLK.
The POS-PHY transmit packet data (TDAT[31:0]) bus carries
the POS packet octets that are written to the transmit FIFO.
TDAT[31:0] bus is considered valid only when TENB is
simultaneously asserted.
TDAT[31:0] is sampled on the rising edge of TFCLK.
TDAT[8]
TDAT[7]
TDAT[6]
TDAT[5]
TDAT[4]
TDAT[3]
TDAT[2]
TDAT[1]
TDAT[0]
Input
B15
The UTOPIA transmit bus parity (TPRTY) signal indicates the
parity on the TDAT[31:0] bus. A parity error is indicated by a
status bit and a maskable interrupt. Cells with parity errors are
still inserted in the transmit stream, so the TPRTY input may be
unused. Odd or even parity may be selected. TPRTY is
considered valid only when TENB is simultaneously asserted.
TPRTY
TPRTY is sampled on the rising edge of TFCLK.
Proprietary and Confidentail to PMC-Sierra Inc., and for its Customer’s Internal Use
33
PMC [ PMC-SIERRA, INC ]
