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1 files changed, 5 insertions, 4 deletions
diff --git a/CHANGES b/CHANGES
index 91c7fb1..8707b27 100644
--- a/CHANGES
+++ b/CHANGES
@@ -8,14 +8,15 @@ Changes in release DE1-19:
OUT# (OUT 0) Send a byte to the Ethernet controller, leave CS# low
C1# (OUT 2) Send a byte to the Ethernet controller, pull CS# high
- C2# (OUT 2) Send FF byte to the Ethernet controller, leave CS# low
C3# (OUT 4) Local reset
- INP# (IN 0) Read a byte from the Ethernet controller, leave CS# low
- STATUS# (IN 1) Read a byte from the Ethernet controller, pull CS# high
+ INP# (IN 0) Read latched byte from controller, leave CS# low
+ STATUS# (IN 1) Read latched byte from controller, pull CS# high
+
+ OUT#, C1# and INP# trigger a new SPI transaction.
Note that reads are "delayed" by one cycle, so it is necessary to
- write a dummy byte before doing the first read.
+ issue a dummy IN 0 before doing the first read.
LEDG0 - disk (SD) activity (for real!)
LEDG1 - disk selected (like the old LED 0)