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RELEASED
DATASHEET
PM7383 FREEDM-32A256
ISSUE 1
PMC-2010336
FRAME ENGINE AND DATA LINK MANAGER 32A256
PROPRIETARY AND CONFIDENTIAL
32
Pin Name
Type
Pin
No.
Function
RXPRTY
Tristate
Output
U3
The receive parity signal (RXPRTY) reflects the
odd parity calculated over the RXDATA[15:0]
signals. RXPRTY is driven/tristate at the same
time as RXDATA[15:0].
RXPRTY is updated on the rising edge of
RXCLK.
RSX
Tristate
Output
Y2
The receive start of transfer signal (RSX)
denotes the start of data transfer on the receive
APPI. When the RSX signal is set high, the 3
most significant bits on the RXDATA[15:0]
signals contain the FREEDM-32A256 device
address and the 10 least significant bits on the
RXDATA[15:0] signals contain the channel
address associated with the data to follow. Valid
device addresses are in the range 0 through 7
(with one address reserved as a null address)
and valid channel addresses are in the range 0
through 255. When the RSX signal is sampled
low, the word on the RXDATA[15:0] signals does
not contain a device and channel address.
RSX is tristate when the FREEDM-32A256
device is not selected via the RENB signal.
RSX is updated on the rising edge of RXCLK.
It is recommended that RSX be connected
externally to a weak pull-down, e.g. 10 k .
REOP
Tristate
Output
T3
The receive end of packet signal (REOP)
denotes the end of a packet. REOP is only valid
during data transfer. When REOP is set high,
RXDATA[15:0] contains the last data byte of a
packet. When REOP is set low, RXDATA[15:0]
does not contain the last data byte of a packet.
REOP is tristate when the FREEDM-32A256
device is not selected via the RENB signal.
REOP is updated on the rising edge of RXCLK.