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GL848 Datasheet(PDF) 45 Page - GENESYS LOGIC

Part # GL848
Description  High Speed USB 2.0
PDF  85 Pages
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Manufacturer  GENESYS [GENESYS LOGIC]
Direct Link  http://www.genesyslogic.com
Logo GENESYS - GENESYS LOGIC

GL848 Datasheet(HTML) 45 Page - GENESYS LOGIC

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GL848 High Speed USB2.0 2-in-1 Scanner Controller With Fast ADF
©2000-2007 Genesys Logic Inc. - All rights reserved.
Page 45
FSTPSEL2 FSTPSEL1 FSTPSEL0 Z2MOD20
Z2MOD19
Z2MOD18
Z2MOD17
Z2MOD16
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
7-5 FSTPSEL [2:0] For type selection of table four and table five in command mode.
(1) For bipolar motors:
000
Full step (for 1939, 1940, 2916, 6219, 3967).
001
Half step (for 1939, 1940, 2916, 6219, 3967).
010
Quarter step (for 2916, 6219, 3967).
011
Eighth step (for 3967).
(2) For unipolar motors:
000
Two-phase-on full step.
001
Half step.
010
Reserved.
011
Single-phase-on full step.
100
Reserved.
7-0 Z2MOD [20:16] “remainder value” of MOD operation in acceleration/deceleration tables.
ASIC calculate the moving time by MOD operation when scanner start to move.
Note: It should be less than LPERIOD.
Note:for ACDCDIS=1,designer must subtract any small offset value from Z2MOD to
solve the first time start/stop motor position problem.
Offset 64h ……..………………………..………..….………..….…..…..…..…. Default value = 8’h00
Z2MOD15
Z2MOD14
Z2MOD13
Z2MOD12
Z2MOD11
Z2MOD10
Z2MOD9
Z2MOD8
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
7-0 Z2MOD [15:8] “remainder value” of MOD operation in acceleration/deceleration tables.
ASIC calculate the moving time by MOD operation when scanner start to move.
Note: It should be less than LPERIOD.
Note:for ACDCDIS=1,designer must subtract any small offset value from Z2MOD to
solve the first time start/stop motor position problem.
Offset 65h ……..………………………..………..….………..….…..…..…..…. Default value = 8’h00
Z2MOD7
Z2MOD6
Z2MOD5
Z2MOD4
Z2MOD3
Z2MOD2
Z2MOD1
Z2MOD0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
7-0 Z2MOD [7:0]
“remainder value” of MOD operation in acceleration/deceleration tables.
ASIC calculate the moving time by MOD operation when scanner start to move.
Note: It should be less than LPERIOD.
Note:for ACDCDIS=1,designer must subtract any small offset value from Z2MOD to
solve the first time start/stop motor position problem.
(1). Two table moving :
speed
Scanning position
buffer full position



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