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參數(shù)資料
| 型號： | GL310MC4D |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | GL310MC PS/2 4D Mouse Controller |
| 中文描述： | GL310MC的PS / 2 4D滑鼠控制器 |
| 文件頁數(shù)： | 9/18頁 |
| 文件大?。?/td> | 232K |
| 代理商： | GL310MC4D |
Revision 1.0 July/16/1998
8
GL310MC PS/2 4D Mouse Controller
The reset state of the device is as follows:
l
Reported sample rate is 100 samples per second.
l
Reported resolution is 4 counts per mm.
l
Scaling is 1:1.
l
Stream mode is selected.
l
Data reporting is disabled.
4.5 Command set
After every command, the device responds within 20ms with an ACK byte ( $FA) and possibly one
or more data bytes. For the Resend ($FE) command, the response sometimes does not begin with an
ACK. For the Reset ($FF) command, the device responds with an ACK ($FA) within 20ms, then
with the completion and ID codes ($AA, $00) within 500ms.
If the device is in Stream mode, the host should disable it before sending a command that requires a
response. However, if a command is sent during enable Stream mode, the device will not send any
further data packets until the responding to the command is finished. If a command is sent during the
transmission of a data packet or response to a previous command, the packet in progress is
abandoned and the new command is processed instead.
The device maintains a count of the amount of X, Y motion since the last data packet was sent. Any
command except Resend ($FE) clears the motion accumulators.
4.5.1 Standard PS/2 commands
The commands described here are standard to all PS/2 pointing devices. As elsewhere in this
document, "$" signifies hexadecimal notation.
$FF Reset. Perform a software reset as described above. Response is ACK ($FA), then $AA, $00
after a calibration delay of 300-500ms.
$FE
Resend.
The host sends this command when it detects invalid output from the device. The
device retransmits the last packet of data, for example, a three -byte motion data packet, a
one-byte response to the Read Device Type ($F2) command, or the two-byte completion-
and-ID reset response ($AA, $00). The ACK ($FA) byte sent to acknowledge a command is
not stored in any buffer or resent; however, if the last output from the device was an ACK
with no additional data bytes, Resend responds with an ACK.
The device will send a Resend ($FE) to the host if it receives invalid input from the host.
$F6
Set Default.
Restore conditions to the initial power-up state. This resets the sample rate,
resolution, sealing, and Stream mode as described above for power-on reset, and disables the
device.
$F5
Disable.
Disable Stream mode reporting of motion data packets. All other device operations
continue as usual.
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