Datasheet

ST10F269 20 - SPECIAL FUNCTION REGISTER OVERVIEW
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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.
1514131211109876543210
MANUF 00001
R
MANUF Manufacturer Identifier - 020h: STMicroelectronics Manufacturer (JTAG worldwide
normalization).
1514131211109876543210
CHIPID REVID
RR
REVID Device Revision Identifier
CHIPID Device Identifier - 10Dh: ST10F269 identifier.
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MEMTYP MEMSIZE
RR
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).
1514131211109876543210
PROGVPP PROGVDD
RR
PROGVDD Programming V
DD
Voltage
V
DD
voltage when programming EPROM or FLASH devices is calculated using the
following formula: V
DD
= 20 x [PROGVDD] / 256 (volts) - 40h for ST10F269 (5V).
PROGVPP Programming V
PP
Voltage (no need of external V
PP
) - 00h