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HT6513 数据表(PDF) 6 Page - Holtek Semiconductor Inc

部件名 HT6513
功能描述  Mouse Controller
PDF  8 Pages
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制造商  HOLTEK [Holtek Semiconductor Inc]
网页  http://www.holtek.com
标志 HOLTEK - Holtek Semiconductor Inc

HT6513 数据表(HTML) 6 Page - Holtek Semiconductor Inc

  HT6513 Datasheet HTML 1Page - Holtek Semiconductor Inc HT6513 Datasheet HTML 2Page - Holtek Semiconductor Inc HT6513 Datasheet HTML 3Page - Holtek Semiconductor Inc HT6513 Datasheet HTML 4Page - Holtek Semiconductor Inc HT6513 Datasheet HTML 5Page - Holtek Semiconductor Inc HT6513 Datasheet HTML 6Page - Holtek Semiconductor Inc HT6513 Datasheet HTML 7Page - Holtek Semiconductor Inc HT6513 Datasheet HTML 8Page - Holtek Semiconductor Inc  
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Output word format:
Bit No.
Mouse system word structures
7
6
5
4
3
210
1st word
1
0
0
0
0
L’
M’
R’
2nd word
H7
H6
H5
H4
H3
H2
H1
H0
3rd word
V7
V6
V5
V4
V3
V2
V1
V0
4th word
EH7
EH6
EH5
EH4
EH3
EH2
EH1
EH0
5th word
EV7
EV6
EV5
EV4
EV3
EV2
EV1
EV0
’: denotes complement
H0~H7: The values of horizontal counter.
V0~V7: The values of vertical counter.
EH0~EH7: The values of extra horizontal counter.
EV0~EV7: The values of extra vertical counter.
Microsoft system mode
In the microsoft mode only 3 words are trans-
mitted with each word divided into one start
bit, seven data bits and two stop bits. Note that
only 2 switch operation is available with the
“M” switch being redundant in this mode. The
“L” and “R” switch status together with the two
most significant bits of both vertical and hori-
zontal counters are transferred in this first
word. The second and third word represent the
horizontal and vertical counters respectively.
Note that this vertical data is recorded in 2’s
complement format.
Output word format:
Bit
No.
Mouse system word structures
6543210
1st
word
1L
R
V7’
V6’
H7
H6
2nd
word
0
H5H4H3H2H1H0
3rd
word
0
V5’
V4’
V3’
V2’
V1’
V0’
Function Descriptions
Mouse system mode
Any change of state of the mouse key-switches
or photo-couplers will be detected by the
HT6513 and transmitted over the RS-232C.
The mouse system protocol will send five words
at a 1200 baud rate with each word containing
10 bits, one start bit, one stop bit and eight data
bits. The first, second and third words corre-
spond to key switch-status, horizontal counter
and vertical counter respectively. The auto-
speed sensing circuits ensure detection of
higher mouse speeds resulting in the use of the
4th and 5th words for extra horizontal and ver-
tical overflow counts respectively. For lower
mouse speeds the 4th and 5th words remain at
zero.
HT6513
6
23rd Oct ’96



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