PM7346 S/UNI-QJET
DATASHEET
PMC-960835
ISSUE 6
SATURN QUAD USER NETWORK INTERFACE FOR J2, E3, T3
Pin Name
Type
Pin No. Function
RDAT[15]
RDAT[14]
RDAT[13]
RDAT[12]
RDAT[11]
RDAT[10]
RDAT[9]
RDAT[8]
RDAT[7]
RDAT[6]
RDAT[5]
RDAT[4]
RDAT[3]
RDAT[2]
RDAT[1]
RDAT[0]
RPRTY
Output T20
T19
Receive Cell Data Bus (RDAT[15:0]). This
bus carries the ATM cell octets that are
read from the receive ATM FIFO selected
by RADR[4:0]. RDAT[15:0] is tri-stated
when RENB is high. RDAT[15:0] is
R17
T18
updated on the rising edge of RFCLK.
U20
The S/UNI-QJET can be configured to
operate with an 8-bit wide or 16-bit wide
ATM data interface via the ATM8 input pin.
RDAT[15:8] will remain tri-stated if ATM8 is
set to logic 1.
U19
T17
U18
V17
RDAT[15:0] is tri-stated when either the
null-PHY address (1FH) or an address not
matching the address space set by
PHY_ADR[2:0] is latched from the
U16
W17
Y17
RADR[4:2] inputs when RENB is high.
V16
U15
W16
Y16
Output R18
Receive Parity (RPRTY). The receive
parity (RPRTY) signal indicates the parity
of the RDAT bus.
The S/UNI-QJET can be configured to
operate with an 8-bit wide or 16-bit wide
ATM data interface via the ATM8 input pin.
In the 8-bit mode, RPRTY reflects the
parity of RDAT[7:0]. In the 16-bit mode,
RPRTY reflects the parity of RDAT[15:0].
Odd or even parity selection is made using
the RXPTYP register bit.
RPRTY is tri-stated when either the null-
PHY address (1FH) or an address not
matching the address space set by
PHY_ADR[2:0] is latched from the
RADR[4:2] inputs when RENB is high.
PMC-SIERRA, INC. PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND ITS CUSTOMERS’ INTERNAL USE 46
PMC [ PMC-SIERRA, INC ]
