Changes between Version 1 and Version 2 of Software/Firmware/Framework/R3_arch/outline/blk_spec/app/rx/f1

Timestamp:

Jul 16, 2010, 3:14:44 AM (14 years ago)

Author:

khanhle

Comment:

--

Software/Firmware/Framework/R3_arch/outline/blk_spec/app/rx/f1

@@ -1 +1 @@
 == APP RX FFT ==
 
+__Figure 1 - APP RX FFT Overview__ 
+[[BR]][[BR]]
+[[Image(app_rx_fft.jpg, 1200px)]]
+[[BR]][[BR]]
+
+R3 architecture consists of following modules : 
+
+ * '''Ethernet Port''' - Ethernet framing function, [[BR]]
+    * Rx - receives ethernet frames from Host. Performs CRC checking, and forwards error free payload to packet processor. 
+    * Tx - transmits ethernet frames to Host. Generates Ethernet header and CRC, IP payload is provided by packet processor.  [[BR]]
+
+ * '''Packet Processor''' - IP layer processing[[BR]]
+    * Packet classification - RMAP, Data, and other (such as ARP and DHCP packets)
+    * UDP is used for board level communication e.g. RMAP and Data packets
+
+ * '''APP''' - User specific application [[BR]]
+    
+ * '''RF Port''' - DAC/ADC interfacing [[BR]]
+
+ * '''Control Plane''' - RMAP and RF control [[BR]]
+
+ * '''Timing Control''' - system wide clock control using clock enables [[BR]]
+
+From Host, we can control the hardware (RMAP read/write operations) by sending RMAP ethernet frame messages. The packet classifier classifies and forwards packets according to its
+type : 
+ * RMAP packets  -> RMAP Processor
+ * Data packets  -> Tx Buffer for APP processing 
+ * Other packets -> TCP/IP stack
+
 [..]