3M PX5 Series, Справочное руководство

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22 3M
™ Multi-Touch ASIC Controller Reference Guide
3M Touch Systems, Inc. Proprietary Information
Table 19. Get Controller ID Setup Stage
Offset Field Size Value Description
0 bmRequestType 1 0xA1 Class,D2H,Interface
1 bRequest 1 0x01 Get Report
2 wValue 2 0x0304 msb=03=Feature lsb=04= Feature Report ID
4 wIndex 2 0x0000 Always 0
6 wLength 2 0x0018 Always 24
Table 20. Get Controller ID Data Stage
Offset Field Size Value Description
0 Report ID 1 0x04 Feature Report ID
1 Ctlr type lsb 1 0x44
Indicates the type of controller BCD ‘D1’
2 Ctlr type msb 1 0x31
3 FWmajor revision 1 0xXX Bootloader firmware revision (BCD encoding)
4 FWminor revision 1 0xXX
5 Features 1 0xXX
“Special Features”
6 Code ChkSum lsb 1 0xXX Application code checksum lsb
7 Code ChkSum msb 1 0xXX Application code checksum msb
8 MaxParamWrite lsb 1 0x40 Max block data bytes for a set/get param request
9 MaxParamWritemsb 1 0x00
10 Block1 Rev 1 0x41
‘A’
11 Not used 1 0x00 Not used
12 Not used 1 0x00 Not used
13 Not Used 1 0x00 Not used
14 Block5 Rev 1 A
15 Block6 Rev 1 A
16 Block7 Rev 1 A
17 Block8 Rev 1 A
18 Not Used 1 0x00 Not used
19 Reserved 1 0xXX
20 Touch Packet 1 0xXX 0=10 , 2=4, 1=6 touches
21 Reserved 1 0xXX
22 Boot ChkSum lsb 1 0xXX Bootloader code checksum lsb
23 Boot ChkSum msb 1 0xXX Bootloader code checksum msb
Max Parameter Write – The largest transfer that can take place. This only affects the Get and Set
Parameter requests.
Data Stage offset 5 Special Features will indicate if Wake On Touch and / or UEFI Loaded Firmware is
present. e.g.
Wake on Touch = (Special Features & 0x10)
UEFI Firmware = (Special Features & 0x80)