GL848 datasheet(39/85 Pages) GENESYS

39 / 85 page

GL848 High Speed USB2.0 2-in-1 Scanner Controller With Fast ADF

Page 39

7-0 VALIDWORD

The available image data stored in SDRAM for host to read.

[23:16]

The unit is in word.

Offset 44h ……..……..…………..………..………..….………..….…..…….…. Default value = 8’h00

VALIDWORD

7-0 VALIDWORD

The available image data stored in SDRAM for host to read.

[15:8]

The unit is in word.

Offset 45h

VALIDWORD

7-0 VALIDWORD

The available image data stored in SDRAM for host to read.

[7:0]

The unit is in word.

Offset 46h

FERDDATA8

7-1 RESERVED

0 FERDDATA [8] This port is for designers to read control register from front-end.

Offset 47h

FERDDATA7 FERDDATA6 FERDDATA5 FERDDATA4 FERDDATA3 FERDDATA2 FERDDATA1 FERDDATA0

7-0 FERDDATA [7:0] This port is for designers to read control register from front-end.

Offset 48h ……..……..…………..………..………..….………..….…..…….…. Default value = 8’h00

FEDCNT20 FEDCNT19 FEDCNT18 FEDCNT17 FEDCNT16

7-5 RESERVED

4-0 FEDCNT [20:16] Steps number which motor has moved.

For example, after setting the moving steps number (Reg 3D, 3E 3F) and

execute the moving command (Reg 0F), designers can get steps number which

has been moved via these registers. It can be reset to zero by CLRMCNT

command.

The unit is in quarter step.

Offset 49h ……..……..…………..………..………..….………..….…..…….…. Default value = 8’h00

FEDCNT15 FEDCNT14 FEDCNT13 FEDCNT12 FEDCNT11 FEDCNT10 FEDCNT9

FEDCNT8

GL848 Datasheet(PDF) 39 Page - GENESYS LOGIC