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參數資料
| 型號： | W81C280 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | USB Keyboard/ Device Controller(具有通用串行總線接口的鍵盤／設備控制器) |
| 中文描述： | 8-BIT, MROM, MICROCONTROLLER, PDIP40 |
| 封裝： | DIP-40 |
| 文件頁數： | 3/27頁 |
| 文件大小： | 328K |
| 代理商： | W81C280 |
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W81C280
Publication Release Date: July 1997
- I -
Revision 0.50
TABLE OF CONTENTS
1. GENERAL DESCRIPTION.......................................................................................................................1
2. FEATURES.................................................................................................................................................1
3. BLOCK DIAGRAM ...................................................................................................................................2
4. PIN CONFIGURATION.............................................................................................................................2
5. PIN DESCRIPTION....................................................................................................................................3
5.1 40 DIP PIN .................................................................................................................................................3
5.2 42 DIP PIN .................................................................................................................................................5
6. FUNCTIONAL DESCRIPTION.................................................................................................................8
6.1 F
IRST
I
N
F
IRST
O
UT
S
TORAGE
(FIFO'S) O
RGANIZATION
................................................................................8
6.1.1 INTERFACE TO THE MICROCONTROLLER:....................................................................................8
6.2 R
EGISTER
D
ESCRITPION
..............................................................................................................................10
6.2.1 Status Registers..................................................................................................................................10
6.2.2 Control Registers ( All registers are set to 00h at power up.).............................................................11
6.3 R
EADING
D
ATA
F
ROM
T
HE
USB FIFO
S AND
R
EGISTERS
..............................................................................12
6.3.1 Reading from the USB's Endpoint0 FIFO...........................................................................................12
6.3.2 Reading ACK Flag for the USB's Endpoint 1 - 4.................................................................................13
6.4 W
RITING
D
ATA
T
O
T
HE
USB FIFO
S AND
R
EGISTERS
...................................................................................14
6.4.1 Writing To The Control Registers.......................................................................................................14
6.4.2 Writing To The USB Endpoint 0 .........................................................................................................14
6.4.3 Writing To The USB Endpoint 1 - 4....................................................................................................15
6.5 I
NTERNAL INTERRUPTS
...............................................................................................................................16
6.5.1 Reacting To The Internal interrupts....................................................................................................16
6.6 R
ESET
........................................................................................................................................................16
6.6.1 External Reset....................................................................................................................................16
6.6.2 Warm Reset........................................................................................................................................17
6.6.3 USB Reset ..........................................................................................................................................17
6.7 USB SUSPEND.........................................................................................................................................17
6.8 USB RESUME:.........................................................................................................................................17
6.9 FULL/LOW SPEED DEVICE DETECTION: ...........................................................................................17
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