ST7FLU05MCE View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

ST7FLU05MCE

8-bit low cost, low pin-count MCU for automotive, with single voltage Flash memory, ADC, timers

STMicroelectronics 

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Register and memory map

3

Register and memory map

ST7LUS5, ST7LU05, ST7LU09

As shown in Figure 6 and Figure 8, the MCU is capable of addressing 64 Kbytes of memories and I/O

registers.

The available memory locations consist of 128 bytes of register locations, 128 bytes of RAM and 1 Kbyte

or 2 Kbytes of user program memory. The RAM space includes up to 64 bytes for the stack from 00C0h

to 00FFh.

The highest address bytes contain the user reset and interrupt vectors.

The Flash memory contains two sectors (see Figure 6 and Figure 8) mapped in the upper part of the ST7

addressing space whereas the reset and interrupt vectors are located in Sector 0 (FE00h-FFFFh for the

ST7LUS5 and FA01h-FFFFh for the ST7LU05/ST7LU09).

t(s) The size of Flash sector 0 and other device options are configurable by the option bytes.

c Caution: Memory locations marked as “Reserved” must never be accessed. Accessing a reserved

u area can have unpredictable effects on the device.

rod ) Figure 4. Memory map (ST7LUS5)

te P ct(s 0000h

sole rodu 007Fh

b P 0080h

t(s) - O olete 00FFh

roduc ) - Obs 0100h

HW registers

(see Table 3)

RAM

(128 bytes)

Reserved

lete P uct(s FBFFh

Obso te Prod FC00h

Flash memory

(1 Kbyte)

0080h

00C0h

00FFh

Short addressing

RAM (zero page)

64-byte stack

FC00h

FDFFh

FE00h

FFFFh

1 Kbyte Flash

Program Memory

0 to 0.5 Kbytes

sector 1

0.5 to 1 Kbytes

sector 0(2)

DEE0h(1)

DEE1h(1)

DEE2h(1)

DEE3h(1)

RCCRH0

RCCRL0

RCCRH1

RCCRL1

See also Section 6.1 on page 31

ole FFDFh

ObsFFE0h

Interrupt and reset vectors

(see Table 15)

FFFFh

1. DEE0h, DEE1h, DEE2h and DEE3h addresses are located in a reserved area but are special bytes containing also the RC

calibration values which are read-accessible only in user mode. If all the EEPROM data or Flash space (including the RC

calibration values locations) has been erased (after the readout protection removal), then the RC calibration values can still

be obtained through these addresses.

2. Size configurable by option byte

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