SA9110AFA Ver la hoja de datos (PDF) - South African Micro Electronic Systems

Número de pieza

componentes Descripción

Fabricante

SA9110AFA

MONOCHIP THREE PHASE BIDIRECTIONAL KILOWATT HOUR METERING IC

South African Micro Electronic Systems 

SA9110A

Word Bit Function

number number

5

27..0 Register 'Total'

6

31..16 ROM

6

15..0 Manufacturers

Identification

7

31..28 ROM

7

27..0 System

Identification

8

31..0 ROM

9

31 Programmed slope

select

9

30..25 ROM

9

24-22 SAMES defined

register

9

21 Sign of offset

9

20..14 Offset

9

13 Sign of slope

9

12..0 Slope

10

31..0 ROM

Description

Registers 1, 2, 3 and 4 are added and stored in the

register 'Total'

Don't care

16 bits are available for the manufacturer of the

metering system as a system identification

Don't care

28 bits are available for the manufacturer of the

metering system as a system identification

Don't care

Programmed slope select bit must be set if the

default slope in ROM is not used

Don't care

Bits must be set to 0 for correct functionality

By setting the sign bit a negative value is indicated

Offset of the device in binary

By setting the sign bit a negative value is indicated

Slope of the device in binary. (default = 11389)

Don't care

The first bit of the programming data is written to word number 1, bit 31. The last

bit is written to word number 10, bit 0.

PGM

PCLK

PDTA

BIT-N0

WORD-NO

31 30 29 28 27 26 25 24 23

0

111111111

10

DR-00957

Programming procedure:

The PGM pin is pulled low and the PCLK pin should be clocked with an external

clock. The programming data on the PDTA pin must be stable during the rising edge

of the clock signal on PCLK.

The clock signal on PCLK should not exceed 200 kHz and does not have to be

synchronised with the oscillator frequency (FOSC).

Programming mode is interrupted if PGM goes high.

sames

11/18

Share Link: