ST10F269ZX datasheet(131/184 Pages) STMICROELECTRONICS

131 / 184 page

ST10F269

20 - SPECIAL FUNCTION REGISTER OVERVIEW

131/184

20.1 - Identification Registers

The ST10F269 has four Identification registers,

mapped in ESFR space. These registers contain:

– A manufacturer identifier,

– A chip identifier, with its revision,

– A internal memory and size identifier and pro-

gramming voltage description.

Note: 256K and 128K versions of ST10F269 have

the same IDMEM corresponding to 256K.

Both versions are based on the same device with

the only difference that the two upper banks of

Flash are not tested on 128K versions. Therefore,

there is no way to detect by software if a device is

a 128K version or a 256K version.

IDMANUF (F07Eh / 3Fh) 1

ESFR

Reset Value: 0401h

IDCHIP (F07Ch / 3Eh) 1

ESFR

Reset Value: 10DXh

IDMEM (F07Ah / 3Dh) 1

ESFR

Reset Value: 3040h

IDPROG (F078h / 3Ch) 1

ESFR

Reset Value: 0040h

Note : 1. All identification words are read only registers.

9876543210

MANUF

00001

MANUF

Manufacturer Identifier - 020h: STMicroelectronics Manufacturer (JTAG worldwide

normalization).

9876543210

CHIPID

REVID

Device Revision Identifier

CHIPID

Device Identifier - 10Dh: ST10F269 identifier.

987654

3210

MEMTYP

MEMSIZE

Internal Memory Size is calculated using the following formula:

Size = 4 x [MEMSIZE] (in K Byte) - 040h for ST10F269 (256K Byte)

MEMTYP

Internal Memory Type - 3h for ST10F269 (Flash memory).

9876543210

PROGVPP

PROGVDD

Programming VDD Voltage

VDD voltage when programming EPROM or FLASH devices is calculated using the

following formula: VDD = 20 x [PROGVDD] / 256 (volts) - 40h for ST10F269 (5V).

PROGVPP

Programming VPP Voltage (no need of external VPP) - 00h

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