STEVAL-IFS003V1 STMicroelectronics, STEVAL-IFS003V1 Datasheet - Page 27

• Manufacturer Part Number: STEVAL-IFS003V1
• Description: BOARD STLM75/STDS75/ST72F651
• Manufacturer: STMicroelectronics

Specifications of STEVAL-IFS003V1

• Design Resources: STEVAL-IFS003V1 Gerber Files STEVAL-IFS003V1 Schematic STEVAL-IFS003V1 Bill of Materials
• Sensor Type: Temperature
• Sensing Range: -55°C ~ 125°C
• Interface: I²C
• Voltage - Supply: 7.5 V ~ 19 V
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: ST72F651, STDS75, STLM75
• Silicon Manufacturer: ST Micro
• Silicon Core Number: STLM75/STDS75 And ST72F651AR6
• Kit Application Type: Sensing - Temperature
• Application Sub Type: Temperature Sensor
• Kit Contents: Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sensitivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-6238

6.2 RESET SEQUENCE MANAGER (RSM)
6.2.1 Introduction
The reset sequence manager includes three RE-
SET sources as shown in
■
■
■
These sources act on the RESET pin and it is al-
ways kept low during the delay phase.
The RESET service routine vector is fixed at ad-
dresses FFFEh-FFFFh in the ST7 memory map.
Figure 17. RESET Sequences
External RESET source pulse
Internal LVD RESET (Low Voltage Detection)
Internal WATCHDOG RESET
WATCHDOG
RESET
EXTERNAL
RESET
SOURCE
RESET PIN
V
V
IT+(LVD)
IT-(LVD)
RUN
V
DD
ACTIVE PHASE
Figure
RESET
LVD
6.2.2:
t
t
w(RSTL)out
h(RSTL)in
RUN
Doc ID 7215 Rev 4
ACTIVE
PHASE
SHORT EXT.
RESET
DELAY
The basic RESET sequence consists of 3 phases
as shown in
■
■
■
Caution: When the ST7 is unprogrammed or fully
erased, the Flash is blank and the RESET vector
is not programmed. For this reason, it is recom-
mended to keep the RESET pin in low state until
programming mode is entered, in order to avoid
unwanted behaviour.
t
Active Phase depending on the RESET source
Min 512 CPU clock cycle delay (see
and
RESET vector fetch
h(RSTL)in
t
w(RSTL)out
RUN
Figure 20
WATCHDOG UNDERFLOW
Figure
ACTIVE
PHASE
LONG EXT.
RESET
17:
INTERNAL RESET (min 512 T
VECTOR FETCH
RUN
ACTIVE
PHASE
WATCHDOG
ST72651AR6
RESET
t
w(RSTL)out
Figure 19
RUN
27/161
CPU
)
1