Changes between Version 22 and Version 23 of 802.11/Usage

Timestamp:

Jul 15, 2014, 5:09:44 PM (10 years ago)

Author:

murphpo

Comment:

--

802.11/Usage

@@ -117 +117 @@
 
 '''Pin Map for v0.95:'''
-||=  Pin  =||=  Signal  =||
-||  0  || '''Tx PHY Active''': asserts when the Tx PHY begins transmitting a frame and de-asserts after the last sample is transmitted ||
-||  1  || '''OFDM Rx PHY Active''': asserts when the first FFT is started and de-asserts when the Rx PHY completes processing ||
-||  2  || '''DSSS Rx PHY Active''': asserts when the DSSS receiver is processing a frame ||
-||  3  || '''OFDM Packet Detect''': asserts when the OFDM Rx PHY attempts a reception. A packet detection event does not always result in an Rx PHY active event ||
-||  4  || '''DSSS Packet Detect''': asserts when the DSSS Rx PHY attempts a reception. A packet detection event does not always result in an Rx PHY active event ||
-||  5  || '''LTS Timeout''': asserts briefly when the Rx PHY fails to correlate the preamble LTS following a packet detection event ||
-||  6  || '''FCS Good''': asserts briefly after the PHY writes the last byte of a received frame to the packet buffer and the checksum calculation indicates no errors ||
-||  7  || '''RSSI Det''': asserts when the instantaneous RSSI exceeds a programmed threshold (debug only - does not indicate actual PHY state) ||
-||  8  || '''Tx Pending''': asserted by the MAC hardware when a new Tx MPDU is provided by the MAC but has not yet been submitted to the Tx PHY ||
-||  9  || '''Idle for DIFS''': asserted whenever the MAC observes the medium has been idle longer than  DIFS interval ||
-||  10  || '''Backoff Active''': asserted whenever the MAC is deferring to a busy medium; the MAC will not transmit when backing off ||
-||  11  || '''NAV Active''': asserted whenever the MAC is enforcing backoff due to virtual carrier sense after reception of a frame with a valid duration field ||
-||  12:14  || '''Sw Debug''': General debug outputs controlled by software via a register in the Rx PHY; useful for unobtrusively measuring software execution times ||
-||  15  || '''INPUT: Rx OFDM Ext Pkt Det''': input to PHY pkt detect logic which forces a pkt det event, independent of the normal detection thresholds; useful for assuring the Rx PHY attempts reception of every packet transmitted by another node (Tx PHY Active -> Ext Pkt Det is "perfect" packet detection) ||
+||=  Pin  =||=  In/Out  =||=  Signal Description  =||
+||  0  ||  Out  || '''Tx PHY Active''': asserts when the Tx PHY begins transmitting a frame and de-asserts after the last sample is transmitted ||
+||  1  ||  Out  || '''OFDM Rx PHY Active''': asserts when the first FFT is started and de-asserts when the Rx PHY completes processing ||
+||  2  ||  Out  || '''DSSS Rx PHY Active''': asserts when the DSSS receiver is processing a frame ||
+||  3  ||  Out  || '''OFDM Packet Detect''': asserts when the OFDM Rx PHY attempts a reception. A packet detection event does not always result in an Rx PHY active event ||
+||  4  ||  Out  || '''DSSS Packet Detect''': asserts when the DSSS Rx PHY attempts a reception. A packet detection event does not always result in an Rx PHY active event ||
+||  5  ||  Out  || '''LTS Timeout''': asserts briefly when the Rx PHY fails to correlate the preamble LTS following a packet detection event ||
+||  6  ||  Out  || '''FCS Good''': asserts briefly after the PHY writes the last byte of a received frame to the packet buffer and the checksum calculation indicates no errors ||
+||  7  ||  Out  || '''RSSI Det''': asserts when the instantaneous RSSI exceeds a programmed threshold (debug only - does not indicate actual PHY state) ||
+||  8  ||  Out  || '''Tx Pending''': asserted by the MAC hardware when a new Tx MPDU is provided by the MAC but has not yet been submitted to the Tx PHY ||
+||  9  ||  Out  || '''Idle for DIFS''': asserted whenever the MAC observes the medium has been idle longer than  DIFS interval ||
+||  10  ||  Out  || '''Backoff Active''': asserted whenever the MAC is deferring to a busy medium; the MAC will not transmit when backing off ||
+||  11  ||  Out  || '''NAV Active''': asserted whenever the MAC is enforcing backoff due to virtual carrier sense after reception of a frame with a valid duration field ||
+||  12:14  ||  Out  || '''Sw Debug''': General debug outputs controlled by software via a register in the Rx PHY; useful for unobtrusively measuring software execution times ||
+||  15  ||  In  || '''Rx OFDM Ext Pkt Det''': input to PHY pkt detect logic which forces a pkt det event, independent of the normal detection thresholds; useful for assuring the Rx PHY attempts reception of every packet transmitted by another node (Tx PHY Active -> Ext Pkt Det is "perfect" packet detection) ||