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PDF EM78680 Data sheet ( Hoja de datos )
| Número de pieza | EM78680 | |
| Descripción | USB Full Speed Microcontroller | |
| Fabricantes | ELAN Microelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de EM78680 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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EM78680
USB Full Speed
Microcontroller
Product
Specification
DOC. VERSION 1.0
ELAN MICROELECTRONICS CORP.
November 2011
1 page  
EM78680
USB Full Speed Microcontroller
1 General Description
The EM78680 is a series of 8-bit Universal Serial Bus (USB), RISC architecture, micro-
controller. It is specifically designed for USB full speed device application. The
EM78680 also supports one device address and six endpoints.
The EM78680 has 8-level stacks and four sets of interrupt sources. It has a maximum
of 38 General Input/Output pins with the capacity of sinking large current. Each device
has 272 bytes of general purpose SRAM, 6K bytes of program ROM.
These series of ICs have special features that meet user’s requirements. Such
features are:
Dual Clock mode which allows the device to run on very low power.
Pattern Detect Application function which is used in serial transmission to count
waveform width.
Pulse Width Modulation that can generate a duty-cycle-programmable signal
24-channel AD converter with up to 10 bits resolution
Serial Peripheral Interface
2 Features
Operating voltage: 4.0V ~ 5.5V ( 24MHz operation voltage: 5.0~5.5V )
USB Specification Compliance
z Universal Serial Bus Specification Version 1.1
z USB Device Class Definition for Human Interface Device (HID), Firmware
Specification Version 1.1
z Supports one device address and six endpoints
USB Application
z P74 (D+) has an internal pull-high resistor (1.5KΩ)
z USB protocol handling
z USB device state handling
z Identifies and decodes Standard USB commands to Endpoint Zero
Built-in 8-bit RISC MCU
z 8-level stacks for subroutine testing, and interrupt
z Auto saving R3, R4 and RA Bit 7 when interrupt occurs
z 4 sets of interrupts
z 8-bit real time clock/counter (TCC) with overflow interrupt
z Built-in RC oscillator free running for Watchdog Timer and Dual clock mode
z Two independent programmable prescalers for WDT and TCC
Product Specification (V1.0) 11.23.2011
(This specification is subject to change without further notice)
•1
5 Page 
Accumulator
R0
00 R1 (TCC)
01 R2 (PC)
02 R3 (Status)
03 R4 (RSR)
04
R5 (Port5)
05
06 R6 (Port6)
07 P7 (Port7)
08 R8 (Port8)
09 R9 (Port9)
0A
0B
0C S RA (EP0 status)
0D RB (General register)
0E RC (FIFO index)
0F RD (FIFO data)
RE (ISR0)
RF (ISR1)
EM78680
USB Full Speed Microcontroller
Stack
(8 levels)
00 : Endpoint0 OUT data
10 : Endpoint0 IN data
01 : Endpoint1 data
02 : Endpoint2 data
03 : Endpoint3 data
04 : Endpoint4 data
05 : Endpoint5 data
06 : SPI IN data
07 : SPI OUT data
IOC5
IOC6
IOC7
IOC8
IOC9
IOCA (RFCNT)
IOCB (PWM_CNT)
IOCC (T1CON)
IOCD (P9 Pull-High)
IOCE (MCU CR)
IOCF (INT MASK)
10 R10 (EP Status reg)
11
R11 (ADCR/AD_Sel)
Extra RAM 0
: R12 (AD_Rate)
1F R13 (AD_LSB)
R14 (AD_MSB)
R15 (PWM1 preset)
R16 (PWM2 preset)
R17
R18
R19
R1A
R1B
R1C
R1D
R1E
R1F
R10 (PWP)
R11 (SPI_COUNT)
R12 (SPIS)
R13 (SPIC)
R14 (TMR1)
R15 (SE1_LOW)
R16 (SE1_HIGH)
R17 (SE2_LOW)
R18 (SE2_HIGH)
R19
R1A
R1B
R1C
R1D
R1E
R1F
Extra RAM 1
000 001
010 011
100
101 110
111
20
21
32x8 Bank
32x8 Bank
32x8 Bank
32x8 Bank
32x8 Bank
32x8 Bank
32x8 Bank
32x8 Bank
:
Register
Register
Register
Register
Register
Register
Register
Register
3F
(Bank 0)
(Bank 1)
(Bank 2)
(Bank 3)
(Ban K 4)
(Bank 5)
(Bank 6)
(Bank 7)
Figure 5-2 Data Memory Configuration
Product Specification (V1.0) 11.23.2011
(This specification is subject to change without further notice)
•7
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet EM78680.PDF ] | |
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