MYSON
TECHNOLOGY
MTP805
(Rev. 0.9)
8051 Embedded USB/PS2 Keyboard/Mouse
Controller
This datasheet contains new product information. Myson Technology reserves the rights to modify the product specification without
notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product.
Revision 0.9
- 1 -
2000/07/19
FEATURES
•
8051 core, 6MHz operating frequency.
•
256-byte RAM, 8K-byte program Flash-ROM.
•
Compliant with Low Speed USB Spec.1.1 including 3 Endpoints: one is Control endpoint (8-byte IN & 8-
byte OUT FIFOs), the other two are Interrupt endpoints (8-byte IN FIFOs).
•
Built-in 3.3V regulator for USB Interface.
•
Suspend / Resume operation.
•
Idle and Power down mode wake-up by interrupt.
•
8 dedicated Key scan input pins and 18/19 Key scan output pins.
•
Built-in low power reset circuit and Watchdog timer.
•
PS2 compatible mouse interface.
•
PS2 compatible keyboard interface share with USB interface.
•
CPU clock can be double by S/W setting.
•
40-pin DIP, 42-pin SDIP or 44-pin PLCC package.
GENERAL DESCRIPTIONS
The MTP805 micro-controller is an 8051 CPU core embedded device specially tailored to USB/PS2
Keyboard/Mouse applications. It includes an 8051 CPU core, 256-byte SRAM, Low Speed USB Interface
and an 8K-byte internal program Flash-ROM.
BLOCK DIAGRAM
P1.0~7
8051
KSO0~7
P2.0~7
KSO8~15
P3.0
MSDATA
P3.1
MSCLK
P3.4
PS2CLK
P3.5
PS2DATA
OSC2
OSC1
RESET
DBUS
P0.0~7
/RD
/WR
ALE
/INT0
/INT1
P3.7
P3.6
ALE
P3.2
P3.3
XFR
SIE
XCVR
KSO16~17
GPIO0~1
KSI0~7
LED0~2
GPO0
V33
DP
DM
WDT
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