--- a/src/README	Wed Jan 18 22:44:39 2017 +0000
+++ b/src/README	Tue Mar 07 02:19:25 2017 +0000
@@ -60,3 +60,29 @@
 DEM/SCLK 2     7 VA
 LRCK     3     6 AGND
 MCLK     4=====5 AOUTR
+
+1 SERIAL DATA INPUT (2's complement MSB first)
+2 DE-EMPHASIS/SCLK
+3 LEFT/RIGHT CLOCK
+4 MASTER CLOCK
+5 ANALOG LEFT CHANNEL OUTPUT
+6 ANALOG POWER (5V)
+7 ANALOG GROUND
+8 ANALOG RIGHT CHANNEL OUTPUT
+
+PT8211
+------
+
+BCK      1=====8 RCH
+WS       2     7 NC
+DIN      3     6 LCH
+GND      4=====5 VDD
+
+1 SERIAL BIT CLOCK INPUT
+2 WORD SELECT CLOCK INPUT PIN
+3 DATA INPUT PIN (Japanese Input Signal Format)
+4 GROUND
+5 POSITIVE POWER SUPPLY (Min 3V, Typ 5V, Max 6V)
+6 LEFT CHANNEL OUTPUT
+7 NO CONNECTION
+8 RIGHT CHANNEL OUTPUT