EM6607 datasheet(2/47 Pages) EMMICRO

2 / 47 page

EM6607

www.emmicroelectronic.com

EM6607 at a glance

Power Supply

- Low Voltage, low power architecture

including internal voltage regulator

- 1.2V ... 3.3 V battery voltage

- 1.8

μA in active mode

- 0.5

μA in standby mode

- 0.1

μA in sleep mode @ 1.5V, 32kHz, 25 °C

- 32 kHz Oscillator or external clock

RAM

- 96 x 4 bit, direct addressable

ROM

- 2048 x 16 bit metal mask programmable

CPU

- 4 bit RISC architecture

- 2 clock cycles per instruction

- 72 basic instructions

Main Operating Modes and Resets

- Active mode

(CPU is running)

- Standby mode

(CPU in Halt)

- Sleep mode

(No clock, Reset State)

- Initial reset on Power-On (POR)

- External reset pin

- Watchdog timer (time-out) reset

- Oscillation detection watchdog reset

- Reset with input combination on PortA

4-Bit Input PortA

- Direct input read

- Debounced or direct input selectable (reg.)

- Interrupt request on input’s rising or falling edge, selectable by

- Pull-down or Pull-up selectable by metal mask

- Software test variables for conditional jumps

- PA3 input for the event counter

- Reset with input combination on PortA (metal option)

4-Bit Input/Output PortB

- Separate input or output selection by register

- Pull-up, Pull-down or none, selectable by metal mask if used as

Input

- Buzzer output on PB0 (24-pin) / PE0 (28-pin)

4-Bit Input/Output PortC

- Input or Output port as a whole port

- Debounced or direct input selectable (reg.)

- Interrupt request on input’s rising or falling edge, selectable by

- Pull-up, pull-down or none, selectable by

metal mask if used as input

- CMOS or N-channel open drain mode

4-Bit Input/Output PortD

- Input or Output port as a whole port

- Pull-up, Pull-down or none, selectable by metal mask if

used as Input

- CMOS or N-channel open drain mode

- Serial Write Buffer clock and data output

4-Bit Input/Output PortE

- Separate input or output selection by register

- Pull-up, Pull-down or none, selectable by metal mask if

used as Input

Serial (output) Write Buffer

- max. 256 bits long clocked with 16/8/2/1kHz

- automatic send mode

- interactive send mode : interrupt request

when buffer is empty

Buzzer Output

- if used output on PB0 (24 pin) or PE0 (28 pin)

- 3 tone buzzer - 1kHz, 2kHz, 2.66kHz/4kHz (TBC)

Prescaler

- 32kHz output possible on the STB/RST pin

- 15 stage system clock divider down to 1 Hz

- 3 interrupt requests: 1Hz/8Hz/32Hz

- Prescaler reset (from 8kHz to 1Hz)

8-bit Timer / Event Counter

- 8-bit auto-reload count-down timer

- 6 different clocks from prescaler

- or event counter from the PA3 input

- parallel load

- interrupt request when comes to 00 hex.

Supply Voltage Level Detector

- 3 software selectable levels (1.3V, 2.0V,

2.3V or user defined between 1.3V and 3.0V)

- Busy flag during measure

- Active only on request during measurement to reduce

power consumption

Interrupt Controller

- 9 external interrupt sources: 4 from PortA, 4 from PortC.

- 3 internal interrupt sources, prescaler, timer and Serial

Write Buffer

- Each interrupt request is individually selectable

- Interrupt request flag is cleared automatically on register

read

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