Silan
Semiconductorsꢀ
SC84510
ꢀ
(D) PS/2 Mouse Error Handling:
(a) A Resend command (FE) following receipt of an invalid input or any input with incorrect parity.
(b) If two invalid input are received in succession, an error code of hex FC send to the system.
(c) The counter accumulators are cleared after receiving any command except “Resend”.
(d) SC84510 receives a Resend command (FE), it transmit its last packet of data.
(e) In the stream mode “Resend” is received by SC84510 following a 3-byte data packet transmission to the
system. SC84510 resend the 3-byte data packet prior to clearing the counter.
(f) A response is sent within 25 ms if
a The system requires a response
b An error is detected in the transmission
(g) When a command requiring a response is issued by the system, another command should not be issue until
either the response is received or 25ms has passed.
(E) PS/2 Mouse Commands Description:
There are 16 valid commands that transmits between the system and SC84510. The “FA” code is always the
first response to any valid input received from the system other than a Set Wrap Mode or Resend command. The
following table list the commands:
The following describes valid commands:
Hex Code
FF
Command
Reset
SC84510 echo code
FA, AA, 00
FE
Resend
XX, (XX, XX)
F6
Set Default
FA
F5
Disable
FA
F4
Enable
FA
F3, XX
F2
Set Sampling Rate
Read Device Type
Set Remote Mode
Set Wrap Mode
Reset Wrap Mode
Read Data
FA, FA
FA, 00
F0
FA
EE
FA
EC
FA
EB
FA, XX, XX, XX
EA
Set Stream Mode
Status Request
Set Resolution
Set Auto-speed
Reset Auto-speed
FA
E9
FA, XX, XX, XX
E8, XX
E7
FA, FA
FA
E6
FA
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
ꢀ
Rev: 1.0
2000.12.31ꢀ
8
SILAN [ SILAN MICROELECTRONICS JOINT-STOCK ]
