EM6819 datasheet(2/154 Pages) EMMICRO

2 / 154 page

EM6819

07 /09 – rev.D

www.emmicroelectronic.com

Power supply

Low power architecture

Voltage regulator for internal logic supply

External regulator capacitor

Voltage mult: gives internal multiplied voltage to allow

0.9V start-up (Padring remains on VSUP)

DC-DC Upconverter: with ext Coil and Cap. Increases

the VSUP for the whole circuit I.e to 3V. Running down

to 0.6V input voltage.

CPU

8-bit CoolRisc 816L Core

16 internal registers

4 hardware subroutine stacks

8-bit hardware multiplier

Flash/EEPROM

16.9k Byte shared Genaral Purpose Non Volatile Flash

memory

max 6k Instructions program memory

max 12 kByte non volatile data memory

RAM

512 x 8-bit static SRAM

48 byte of Ram-cache for EEProm modification support

Operating modes

Active mode: CPU and peripherals are running

Standby mode: CPU halted, peripherals on

Sleep mode: no clocks, data retained

Power-Down mode, Reset state

Wake Up Event from PortA inputs

Resets

Power On Reset

Reset from logic watchdog

Brown out (as voltage supervisory function)

Reset with Port A selection

Flags to identify the reset source

Watchdog timer

generation of watchdog reset after time out

independent low frequency watchdog oscillator

Oscillator RC

internal RC oscillator, 2MHz and 15MHz pre-trimmed

internal 8 KHz RC Oscillator

External Oscillator

32 KHz watch type Crystal or 4MHz Resonator/XTAL

Prescaler’s

Two clock prescalers (dividers) for the peripheral clock

generation:

Prescaler 1 is a 15-stage divider

Prescaler 2 is a 10-stage divider

input clock software selectable

fix intervall IRQ’s

Interrupt

external IRQ’s from Port A, VLD, Comparator

internal IRQ’s from Timer, Prescaler, ADC, SPI

Event from SPI/ADC and DoC

VLD

Detection of 32 voltage levels, internal reference

Comparison against VSUP, input Pin or Op.Amp output

Parallel In/Output Port A, Port C

8-bit wide direct input read

all functions bit-wise configurable

Input , output

Debouncer, IRQ on pos. or neg. edge

Input combination reset

Pullup, pulldown or nopull selectable

Freq. Input for timer

Analog In/Out

Parallel In/Output Port B

8 multipurpose I/O’s

8-bit wide direct input read

CMOS or Nch. Open Drain outputs

all functions bit-wise configurable

Input , output

Pullup, pulldown or nopull selectable

CMOS or Nch. Open Drain outputs

Serial Port Interface SPI

3 wire serial Interface, Sclk, Sin, Sout

master and Slave mode

Serial datastream output

Event / IRQ

Maped on port outputs

Timer (4 x 8-bit, or 2 x 16-bit)

8 (16) bit wide, Zero Stop and Auto Reload mode

External signal pulse width measurement

PWM generation, IRQ

Event Counter

Input capture

Output compare

Sleep Counter Wake-up (SCWUP)

Automatically wakes up the circuit from sleep mode

Enable/disable by register

Op. Amplifier / Comparator

All 3 terminals mapped on PortA/PortC

Output routed to VLD cell

Amplifier or Comparator output

Temp. Sensor

Fully internal temperature sensor

Multiplexed input to ADC

Brown Out

On-chip Brown-Out detection, reset state

Power check at Startup

ADC

10-bit, 8 channels ADC

Single or Continuous mode

External/internal reference voltage available on a pad

Event / IRQ

DoC (Debug on Chip)

2 wire serial interface debug and programming interface

Flash programming

Event / IRQ

EM6819 Datasheet(PDF) 2 Page - EM Microelectronic - MARIN SA

EM6819 Datasheet(HTML) 2 Page - EM Microelectronic - MARIN SA

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Descarga

Enlace URL