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HT82M9BEE Folha de dados(PDF) 24 Page - Holtek Semiconductor Inc

Nome de Peças HT82M9BEE
Descrição Electrónicos  USB Mouse Encoder 8-Bit MCU with EEPROM
Download  44 Pages
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Fabricante Electrônico  HOLTEK [Holtek Semiconductor Inc]
Página de início  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT82M9BEE Folha de dados(HTML) 24 Page - Holtek Semiconductor Inc

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HT82M9BEE/HT82M9BAE
Rev. 1.50
24
December 22, 2008
1 of USC). Once the USB Host receive the wake-up signal
from the HT82M9BEE, it will send a Resume signal to the
device. The timing is as follows:
To Configure the HT82M9BEE as PS2 Device
The HT82M9BEE can be defined as a USB interface or
a PS2 interface by configuring the SPS2 (bit 4 of the
USR) and SUSB (bit 5 of the USR). If SPS2=1, and
SUSB=0, the HT82M9BEE is defined as PS2 interface,
pin USBD- is now defined as PS2 Data pin and USBD+
is now defined as PS2 Clk pin. The user can easily read
or write to the PS2 Data or PS2 Clk pin by accessing the
corresponding bit PS2DAI (bit 4 of the USC), PS2CKI
(bit 5 of the USC), PS2DAO (bit 6 of the USC) and
S2CKO (bit 7 of the USC) respectively.
The user should make sure that in order to read the data
properly, the corresponding output bit must be set to
²1².
For example, if user wants to read the PS2 Data by
reading PS2DAI, the PS2DAO should be set to
²1².Oth-
erwise it always read a
²0².
If SPS2=0, and SUSB=1, the HT82M9BEE is defined as
a USB interface. Both the USBD- and USBD+ are driven
by the USB SIE of the HT82M9BEE. User only writes or
reads the USB data through the corresponding FIFO.
Both SPS2 and SUSB default is
²0².
S U S P E N D
U S B R e s u m e S i g n a l
U S B _ I N T
R M W K
M i n . 2 . 5 m s
M i n . 1 U S B C L K
I/O Port Special Registers Definition
· Port-A (12H)
- PA
Bit No.
Label
Read/Write
Option
Functions
0~3
PA0~PA3
R/W
¾
I/O (R/W) has pull-low and pull-high option.
Has falling edge wake-up option.
4~6
PA4~PA6
R/W
¾
I/O (R/W) has pull-high option.
Has falling edge wake-up option.
7
PA7
R/W
¾
I/O (R/W) has pull-high option.
Has falling edge wake-up option, pin-shared with timer input pin.
PA (12H) Register
· Port-A Control (13H) - PAC
This port configure the input or output mode of Port-A
· Port-B Control (14H) - PB
Bit No.
Label
Read/Write
Option
Functions
0
PB0
R/W
¾
I/O (R/W), has pull-high option
1
PB1
R/W
¾
I/O (R/W), has pull-high option
2
PB2
R/W
¾
I/O (R/W), has pull-low and pull-high option
3
PB3
R/W
¾
I/O (R/W), has pull-low and pull-high option
4
PB4/SDA
R/W
¾
I/O (R/W), has pull-high option, can wake-up
5
PB5
R/W
¾
I/O (R/W), has pull-high option
6
PB6
R/W
¾
I/O (R/W), has pull-high option
7
PB7/SCL
R/W
¾
I/O (R/W), has pull-high option, can wake-up
PB (14H) Register
· Port-B Control (15H) - PBC
This port configures the input or output mode of Port-B for I/O mode


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