|
|
PDF EM78611 Data sheet ( Hoja de datos )
| Número de pieza | EM78611 | |
| Descripción | Universal Serial Bus Series Microcontroller | |
| Fabricantes | ELAN Microelectronics | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de EM78611 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
EM78611
Universal Serial Bus
Series Microcontroller
Product
Specification
DOC. VERSION 1.3
ELAN MICROELECTRONICS CORP.
November 2011
1 page  
EM78611
Universal Serial Bus Series Microcontroller
1 General Description
The EM78611 is a series of 8-bit Universal Serial Bus RISC architecture
microcontroller. It is specifically designed for USB low speed device application and to
support standard devices such as PS/2 keyboard. The EM78611 also supports one
device address and three endpoints. With no firmware involved, these series of
microcontrollers can automatically identify and decode Standard USB Command to
Endpoint Zero.
The EM78611 has eight-level stacks and six interrupt sources. It has a maximum of 12
General Input/Output pins. Each device has 144 bytes of general purpose SRAM, and
6K bytes of program ROM. These series of ICs have Dual Clock mode which allows
the device to run on very low power saving frequency.
2 Features
Operating voltage 4.4V ~ 5.5V
Low-cost solution for low-speed USB devices, such as keyboard, joystick, and
Gamepad.
USB Specification Compliance
• Universal Serial Bus Specification Version 1.1
• USB Device Class Definition for Human Interface Device (HID), Firmware
Specification Version 1.1
• Support 1 device address and 3 endpoints
USB Application
• P75(D-) has an internal pull-high resistor (1.5KΩ)
• USB protocol handling
• USB device state handling
• Identifying and decoding of Standard USB commands to EndPoint Zero
PS/2 Application Support
• Built-in PS/2 port interface for keyboard and mouse
Built-in 8-bit RISC MCU
• 8-level stacks for subroutine and interrupt
• 6 available interrupts
• 8-bit real time clock/counter (TCC) with overflow interrupt
• Built-in RC oscillator free running for Watchdog Timer and Dual clock mode
• Two independent programmable prescalers for WDT and TCC
Product Specification (V1.3) 11.23.2011
(This specification is subject to change without further notice)
•1
5 Page 
EM78611
Universal Serial Bus Series Microcontroller
register overflows from FFh to 00h. This overflow sets bit TCIF (RF[0]). The interrupt
can be masked by clearing bit TCIE (IOCF[0]). After a Power-on reset and Watchdog
reset, the initial value of this register is 0x00.
6.2.2.3 R2 (Program Counter & Stack) Default Value: (0B_0000_0000)
The EM78611 Program Counter is a 13-bit long register that allows accessing of the 6k
words of Program Memory with 8-level stacks. The eight LSB bits, A0~A7, are located
at R2, while the three MSB bits, A12~A10, are located at R3. The Program Counter is
cleared after a Power-on reset or Watchdog reset. The first instruction that is executed
after a reset is located at address 00h.
A12 A11 A10
A9 A8
A7~A0
0000
03FF
0400
07FF
0800
0BFF
1000
13FF
1400
17FF
Page 0
Page 1
Page 2
Page 0
Page 0
Call
Interrupt
RET
RETL
RETI
Stack 1
Stack 2
Stack 3
Stack 4
Stack 5
Stack 6
Stack 7
Stack 8
0000 : Reset Vector
0001 : Interrupt Vector
6.2.2.4 R3 (Status Register) Default Value: (0B_0001_1XXX)
Bit 7
PS2
Bit 6
PS1
Bit 5
PS0
Bit 4
T
Bit 3
P
Bit 2
Z
Bit 1
DC
Bit 0
C
R3 [0] Carry/Borrow flag
0: No carry-out from the Most Significant bit of the result occurred
1: A carry-out from the Most Significant bit of the result occurred
Product Specification (V1.3) 11.23.2011
(This specification is subject to change without further notice)
•7
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet EM78611.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| EM78611 | Universal Serial Bus Series Microcontroller | ELAN Microelectronics |
| EM78611E | Universal Serial Bus Series Microcontroller | ELAN Microelectronics |
| EM78612 | Universal Serial Bus Microcontroller | ELAN Microelectronics |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |