C511 datasheet(108/128 Pages) SIEMENS

108 / 128 page

EEPROM Programming Interface

SAB-C513A-H

Semiconductor Group

9-8

9.2.4.1

Programming Control Register PCNTRL

This register holds the bits to control the access to the EEPROM memory and the programming

process.

Programming Interface Register PCNTRL (Address 00H)

Reset Value : 0XXX0000B

Bit

Function

ADRI

Address Increment Enable

If ADRI=1, the address in the address registers PADRH/PADRL is

incremented when a read operation of PDATA is performed.

If ADRI=0, the address is not modified.

–

Reserved Bits

These bits must be written with ’0’. During reads these bits will be undefined.

EOM 2 - EOM 0

EEPROM Operation Mode

These bits define the operation to be performed on the selected memory byte

or memory block.

All other combinations of EOM2-0 are not allowed. Their use might lead to

unpredictable results.

PROG

Program Voltage Enable

If PROG=1, the programming voltage is turned on if EOM2-0=001B or 010B.

If EOM2-0 is set to any other value, the programming voltage is inhibited.

If PROG=0, the programming voltage is turned off.

ADRI

–––

00H

PCNTRL

Bit No.

MSB

LSB

EOM2

EOM1

EOM0 PROG

EOM2

EOM1 EOM0 Operation

00NOP

Erase (clear) selected memory bytes/blocks

Write selected byte(s) with the content of PDATA

Read content of the addressed memory byte

(address in PADRH/PADRL)

C511 Datasheet(PDF) 108 Page - Siemens Semiconductor Group

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