RELEASED
PM7380 FREEDM-32P672
DATA SHEET
PMC-1990262
ISSUE 5
FRAME ENGINE AND DATA LINK MANAGER 32P672
Pin Name
Type
Input
Pin
No.
Function
RD[0]
N20
N22
M21
L22
L23
K21
J21
The receive data signals (RD[31:0]) contain
the recovered line data for the 32
independently timed links in normal mode
(PMCTEST set low). Processing of the
receive links is on a priority basis, in
descending order from RD[0] to RD[31].
Therefore, the highest rate link should be
connected to RD[0] and the lowest to
RD[31].
For H-MVIP links, RD[n] contains 32/128
time-slots, depending on the H-MVIP data
rate configured (2.048 or 8.192 Mbps).
When configured for 2.048 Mbps H-MVIP
operation, RD[31:24], RD[23:16], RD[15:8]
and RD[7:0] are sampled on every 2nd rising
edge of RMVCK[3], RMVCK[2], RMVCK[1]
and RMVCK[0] respectively (at the ¾ point
of the bit interval). When configured for
8.192 Mbps H-MVIP operation, RD[4m]
(0?m?7) are sampled on every 2nd rising
edge of RMV8DC (at the ¾ point of the bit
interval).
For channelised links, RD[n] contains the 24
(T1/J1) or 31 (E1) time-slots that comprise
the channelised link. RCLK[n] must be
gapped during the T1/J1 framing bit position
or the E1 frame alignment signal (time-slot
0). The FREEDM-32P672 uses the location
of the gap to determine the channel
alignment on RD[n]. RD[31:0] are sampled
on the rising edge of the corresponding
RCLK[31:0].
RD[1]
RD[2]
RD[3]
RD[4]
RD[5]
RD[6]
RD[7]
J20
RD[8]
H23
G22
G23
F23
E23
D22
E20
C23
A22
D20
B21
D19
B20
A19
A18
A17
A16
C16
D15
C15
B14
D13
B13
C12
RD[9]
RD[10]
RD[11]
RD[12]
RD[13]
RD[14]
RD[15]
RD[16]
RD[17]
RD[18]
RD[19]
RD[20]
RD[21]
RD[22]
RD[23]
RD[24]
RD[25]
RD[26]
RD[27]
RD[28]
RD[29]
RD[30]
RD[31]
For unchannelised links, RD[n] contains the
HDLC packet data. For certain transmission
formats, RD[n] may contain place holder bits
or time-slots. RCLK[n] must be externally
gapped during the place holder positions in
the RD[n] stream. The FREEDM-32P672
supports a maximum data rate of 10 Mbit/s
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA,INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
14
PMC [ PMC-SIERRA, INC ]
