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GL848 Datasheet(PDF) 44 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) 44 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 44
It cannot be programmed to logic zero.
Offset 5Fh ……..………………………..………..….………..….…..…..…..…. Default value = 8’h00
FMOVDEC7 FMOVDEC6 FMOVDEC5 FMOVDEC4 FMOVDEC3 FMOVDEC2 FMOVDEC1 FMOVDEC0
R/W
R/W
R/W
R/W
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7-0 FMOVDEC [7:0] Deceleration steps in table 5 for auto-go-home.
Note: 1.It cannot be programmed to logic zero.
2.It can be multiplied by 2 *
STEPTIM
Offset 60h ……..………………………..………..….………..….…..…..…..…. Default value = 8’h20
STEPSEL2 STEPSEL1 STEPSEL0 Z1MOD20
Z1MOD19
Z1MOD18
Z1MOD17
Z1MOD16
R/W
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7-5 STEPSEL [2:0] For type selection of table one, table two and table three in scanning 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.
4-0 Z1MOD [20:16] “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.
Offset 61h ……..………………………..………..….………..….…..…..…..…. Default value = 8’h00
Z1MOD15
Z1MOD14
Z1MOD13 Z1MOD12
Z1MOD11
Z1MOD10
Z1MOD7
Z1MOD8
R/W
R/W
R/W
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R/W
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R/W
7-0 Z1MOD [15:8] “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.
Offset 62h ……..………………………..………..….………..….…..…..…..…. Default value = 8’h00
Z1MOD7
Z1MOD6
Z1MOD5 Z1MOD4
Z1MOD3
Z1MOD2
Z1MOD1
Z1MOD0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
7-0 Z1MOD [7:0]
“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.
Offset 63h ……..………………………..………..….………..….…..…..…..…. Default value = 8’h00



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