GDC21D301A Datasheet, PDF (26/35 Pages) Hynix Semiconductor – Transport Decoder

2) When M16 = ‘ 0’ (4Mbit DRAM used)
When it is ‘Write’, the lower 4 bits and higher 2 bits are written to
21 20 19
Internal Start Pointer register
GDC21D301A
43
0
21
65
0
15
When ‘ Write’
0 15
0
When ‘ Read’
27