Added chipset info.

unsupported/canon-4200f.html

@@ -37,6 +37,8 @@ chip 1
 ESMT
 M12L16161A-  7T
 LNS1P43ZE  0503
+This is the DRAM module used inside this scanner:
+http://www.esmt.com.tw/DB/manager/upload/M12L16161A.pdf
 
 chip 2
 610800017919 D1
@@ -47,12 +49,18 @@ chip 3
 WM
 WM8196SCDS
 55AMPBX
+This scanner uses a Wolfson Electronics WM8196SCDS chip as ADC.
+http://www.wolfson.co.uk/products/digital_imaging/WM8196/
+There is also a datasheet available:
+http://www.wolfsonmicro.com/uploads/documents/8196.pdf
 
 chip 4
 ST E
 L6219DS
 9913M V6
 MYS 99 507
+This is the controller of the scanner motor:
+http://www.allegromicro.com/datafile/6219.pdf
     </pre>
     <p>
       Photos of the chipset <a href="http://www.nakasi.cz/canoscan4200f.zip">are available</a>.