參數(shù)資料
型號(hào)： HT82M9BEE
廠商： Holtek Semiconductor Inc.
英文描述： USB Mouse Encoder 8-Bit MCU with EEPROM
中文描述： USB鼠標(biāo)編碼器8位微控制器帶有EEPROM
文件頁(yè)數(shù)： 24/47頁(yè)
文件大小： 336K
代理商： HT82M9BEE
HT82M9BEE/HT82M9BAE
Rev. 1.20
24
August 13, 2007
from the HT82M9BEE/HT82M9BAE, it will send a Re-
sume signal to the device. The timing is as follows:
To Configure the HT82M9BEE/HT82M9BAE as PS2
Device
The HT82M9BEE/HT82M9BAE 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/HT82M9BAE
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) respec-
tively.
The user should make sure that in order to read the data
properly, the corresponding output bit must be set to 1 .
For example, if user wants to read the PS2 Data by
reading PS2DAI, the PS2DAO should be set to 1 . Oth-
erwise it always read a 0 .
If SPS2=0, and SUSB=1, the HT82M9BEE/
HT82M9BAE is defined as a USB interface. Both the
USBD- and USBD+ are driven by the USB SIE of the
HT82M9BEE/HT82M9BAE. User only writes or reads
the USB data through the corresponding FIFO.
Both SPS2 and SUSB default is 0 .
& -
-
0
& C
/
' ' 3
' - -
& -
"
I/O Port Special Registers Definition
Port-A (12H)
PA
Bit No.
Label
Read/Write
Option
Functions
0~3
PA0~PA3
R/W
I/O (R/W) has pull-low and pull-high option.
Has falling edge wake-up option.
4~6
PA4~PA6
R/W
I/O (R/W) has pull-high option.
Has falling edge wake-up option.
7
PA7
R/W
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)
This port configure the input or output mode of Port-A
PAC
Port-B Control (14H)
PB
Bit No.
Label
Read/Write
Option
Functions
0
PB0
R/W
I/O (R/W), has pull-high option
1
PB1
R/W
I/O (R/W), has pull-high option
2
PB2
R/W
I/O (R/W), has pull-low and pull-high option
3
PB3
R/W
I/O (R/W), has pull-low and pull-high option
4
PB4/SDA
R/W
I/O (R/W), has pull-high option, can wake-up
5
PB5
R/W
I/O (R/W), has pull-high option
6
PB6
R/W
I/O (R/W), has pull-high option
7
PB7/SCL
R/W
I/O (R/W), has pull-high option, can wake-up
PB (14H) Register
Port-B Control (15H)
This port configures the input or output mode of Port-B for I/O mode
PBC
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