gl846 Genesys Logic, gl846 Datasheet - Page 49

• Manufacturer Part Number: gl846
• Description: High Speed Usb 2.0 2-in-1 Scanner Controller With Fast Adf
• Manufacturer: Genesys Logic

©2000-2007 Genesys Logic Inc. - All rights reserved.
Offset 61h ……..………………………..………..….………..….…..…..…..…. Default value = 8’h00
Offset 62h ……..………………………..………..….………..….…..…..…..…. Default value = 8’h00
Offset 63h ……..………………………..………..….………..….…..…..…..…. Default value = 8’h00
7-0 Z1MOD [15:8] “remainder value” of MOD operation in acceleration/deceleration tables.
7-0 Z1MOD [7:0]
7-5
4-0 Z1MOD [20:16] “remainder value” of MOD operation in acceleration/deceleration tables.
7-0 Z2MOD [20:16] “remainder value” of MOD operation in acceleration/deceleration tables.
FSTPSEL2 FSTPSEL1 FSTPSEL0
Z1MOD15 Z1MOD14 Z1MOD13 Z1MOD12 Z1MOD11 Z1MOD10 Z1MOD7
Z1MOD7
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FSTPSEL [2:0]
GL846 High Speed USB2.0 2-in-1 Scanner Controller With Fast ADF
Z1MOD6
Note:for ACDCDIS=1,designer must subtract any small offset value from Z2MOD to
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(2) For unipolar motors:
ASIC calculate the moving time by MOD operation when buffer-full occurs.
Note: It should be less than LPERIOD.
ASIC calculate the moving time by MOD operation when buffer-full occurs.
Note: It should be less than LPERIOD.
“remainder value” of MOD operation in acceleration/deceleration tables.
ASIC calculate the moving time by MOD operation when buffer-full occurs.
Note: It should be less than LPERIOD.
For type selection of table four and table five in command mode.
(1) For bipolar motors:
(2) For unipolar motors:
ASIC calculate the moving time by MOD operation when scanner start to move.
Note: It should be less than LPERIOD.
solve the first time start/stop motor position problem.
Z1MOD5 Z1MOD4
011 Single-phase-on full step.
100 Reserved.
011 Eighth step (for 3955, 3967).
100 Sixteenth step (for 3972)
011 Single-phase-on full step.
100 Reserved.
000 Two-phase-on full step.
001 Half step.
010 Reserved.
000 Full step (for 1939, 1940, 2916, 6219, 3955, 3967).
001 Half step (for 1939, 1940, 2916, 6219, 3955, 3967).
010 Quarter step (for 2916, 6219, 3955, 3967).
000 Two-phase-on full step.
001 Half step.
010 Reserved.
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Z2MOD20 Z2MOD19 Z2MOD18 Z2MOD17 Z2MOD16
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Z1MOD3
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Z1MOD2
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Z1MOD1
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Z1MOD8
Z1MOD0
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