document crashread switch

diff --git a/detpic/test-sofar.asm b/detpic/test-sofar.asm
index 5b854bf5426f9241a95058c9973784c8d979eb9f..a19bd886d714f91e6493d5a85c8a23d51d9ef364 100644 (file)
--- a/detpic/test-sofar.asm
+++ b/detpic/test-sofar.asm
@@ -31,7 +31,7 @@
 ;              if we are to read (readwrite 0 or +ve):
 ;               i2cm_read_start (buffer empty)
 ;
-;      0x00    selects reading, manual advance
+;      0x00    switch to crash readout mode (see README.protocol)
 ;
 ;      0x80-ff make buffer consisting of only that byte
 ;               (ie, clear top bit, store at start of buffer,