
DATA SHEET
PM7367 FREEDM-32P32
ISSUE 2
PMC-1991499
FRAME ENGINE AND DATA LINK MANAGER
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMER’S INTERNAL USE
9
7
PIN DESCRIPTION
Table 1 – Line Side Interface Signals (132)
Pin Name
Type
Pin
No.
Function
RCLK[0]
RCLK[1]
RCLK[2]
RCLK[3]
RCLK[4]
RCLK[5]
RCLK[6]
RCLK[7]
RCLK[8]
RCLK[9]
RCLK[10]
RCLK[11]
RCLK[12]
RCLK[13]
RCLK[14]
RCLK[15]
RCLK[16]
RCLK[17]
RCLK[18]
RCLK[19]
RCLK[20]
RCLK[21]
RCLK[22]
RCLK[23]
RCLK[24]
RCLK[25]
RCLK[26]
RCLK[27]
RCLK[28]
RCLK[29]
RCLK[30]
RCLK[31]
Input
G1
G3
F2
F3
E2
D1
D2
B4
A4
C6
A5
C7
B7
C8
A8
C9
A9
C10
A10
C11
A12
C12
A13
C13
B14
A15
D14
A16
C16
D16
W17
Y17
The receive line clock signals (RCLK[31:0])
contain the recovered line clock for the 32
independently timed links. Processing of
the receive links is on a priority basis, in
descending order from RCLK[0] to
RCLK[31]. Therefore, the highest rate link
should be connected to RCLK[0] and the
lowest to RCLK[31]. RD[31:0] is sampled
on the rising edge of the corresponding
RCLK[31:0] clock.
For channelised T1 or E1 links, RCLK[n]
must be gapped during the framing bit (for
T1 interfaces) or during time-slot 0 (for E1
interfaces) of the RD[n] stream. The
FREEDM-32P32 uses the gapping
information to determine the time-slot
alignment in the receive stream.
RCLK[31:0] is nominally a 50% duty cycle
clock of 1.544 MHz for T1 links and 2.048
MHz for E1 links.
For unchannelised links, RCLK[n] must be
externally gapped during the bits or time-
slots that are not part of the transmission
format payload (i.e. not part of the HDLC
packet). RCLK[2:0] is nominally a 50% duty
cycle clock between 0 and 52 MHz.
RCLK[31:3] is nominally a 50% duty cycle
clock between 0 and 10 MHz.