參數資料
型號: CM109
廠商: C-Media Electronics Inc.
英文描述: USB I/O Controller
中文描述: 的USB I / O控制器
文件頁數: 9/36頁
文件大?。?/td> 618K
代理商: CM109
CM109
High Integration / Low Cost USB Audio Controller
for PC Internet Phone
Date: 08/Sep/2005
Version:
1.3a
- 16 -
7.3.2 Windows Software Architecture for HID
Note: Please contact with our sales for the C-Media SDK example if needed.
7.4 Internal Registers
All internal registers of CM109 can be accessed via generic HID functional calls without
the need to develop kernel mode driver. Totally 4 bytes of data can be read or write from
HID. Input report is for read and output report is for write. Internal registers of CM109 are
used to control GPIO, S/PDIF output, EEPROM and MCU data access. Host side HID or
external MCU can access CM109 internal registers. With both sides accessed to the
same set of registers, two-way communication can be achieved.
7.4.1 Access via HID Class Command:
HID_IR0 to HID_IR3 are HID input report and is use by host side receiving data to
CM109. HID_OR0 to HID_OR3 are HID output report and is used by host side sending
adta to CM109
HID interrupt will occur when HID_IR0-3 are updated by button status MCU (and GPI in
case HID_IR0[7:6] == 2’b00).
PCI Enumerator
USB Class Driver(USBD.SYS)
USB HUB Driver(USBHUB.SYS)
USB
HID Class Driver(HIDCLASS.SYS)
Gameport MiniDriver(HIDGAME.SYS)
Gameport
Audio Driver
Keyboard Class Driver
Mouse Class Driver
Joy Stick Class Driver
C-Media SDK
Reports
(device specification)
Winmm.dll
Direct Input
HID.dll
Applications
User32.exe or User.exe
相關PDF資料
PDF描述
CM1408-08DE 8 FUNCTIONS, 2.5 V, DATA LINE FILTER
CM1482-02DE 2 FUNCTIONS, DATA LINE FILTER
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