PM7346 S/UNI-QJET
DATASHEET
PMC-960835
ISSUE 6
SATURN QUAD USER NETWORK INTERFACE FOR J2, E3, T3
Pin Name
Type
Pin No. Function
TFPO[4]
TFPO[3]
TFPO[2]
TFPO[1]
Output W14
Framer Transmit Frame Pulse/Multi-frame
Pulse Reference (TFPO/TMFPO[4:1]).
TFPO/TMFPO[4:1] is valid when the
S/UNI-QJET is configured as a DS3, E3,
or J2 framer for non-ATM applications by
setting the FRMRONLY bit in the
S/UNI-QJET Configuration 1 Registers to
logic 1 and the TXGAPEN bit in the
S/UNI-QJET Configuration Registers to
logic 0.
Y10
Y7
V5
TFPO[4:1] pulses high for 1 out of every
85 clock cycles when configured for DS3,
giving a free-running mark for all overhead
bits in the frame. TFPO[4:1] pulses high
for 1 out of every 1536 clock cycles when
configured for G.751 E3, giving a free-
running reference G.751 indication.
TFPO[4:1] pulses high for 1 out of every
4296 clock cycles when configured for
G.832 E3, giving a free-running reference
G.832 frame indication. TFPO[4:1] pulses
high for 1 out of every 789 clock cycles
when configured for J2, giving a free-
running reference frame indication.
TMFPO[4]
TMFPO[3]
TMFPO[2]
TMFPO[1]
TMFPO[4:1] pulses high for 1 out of every
4760 clock cycles when configured for
DS3, giving a free-running reference M-
frame indication.TMFPO[4:1] pulses high
for 1 out of every 3156 clock cycles when
configured for J2, giving a free-running
reference multi-frame indication.
TMFPO[4:1] behaves the same as
TFPO[4:1] for E3 applications.
TFPO/TMFPO[4:1] is updated on the
rising edge of TICLK[4:1] or RCLK[4:1] if
loop-timed.
PMC-SIERRA, INC. PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND ITS CUSTOMERS’ INTERNAL USE 31
PMC [ PMC-SIERRA, INC ]
