ST7FLITE05Y0B6 FARNELL, ST7FLITE05Y0B6 Datasheet - Page 36
ST7FLITE05Y0B6
Manufacturer Part Number
ST7FLITE05Y0B6
Description
IC, 8BIT MCU, ST7, 16MHZ, DIP-16
Manufacturer
FARNELL
Datasheet
1.ST7FLITE05Y0B6.pdf
(124 pages)
Specifications of ST7FLITE05Y0B6
Controller Family/series
ST7
No. Of I/o's
13
Ram Memory Size
128Byte
Cpu Speed
16MHz
No. Of Timers
2
Interface
SPI
Core Size
8 Bit
Program Memory Size
1.5 Kb
Peripherals
ADC, PWM, Timer
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ST7FLITE05Y0B6
Manufacturer:
ST
Quantity:
20 000
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ST7LITE0xY0, ST7LITESxY0
SYSTEM INTEGRITY MANAGEMENT (Cont’d)
8.4.4 Register Description
SYSTEM INTEGRITY (SI) CONTROL/STATUS REGISTER (SICSR)
Read/Write
Reset Value: 0000 0x00 (0xh)
Bit 7:4 = Reserved, must be kept cleared.
Bit 3 = LOCKED PLL Locked Flag
This bit is set by hardware. It is cleared only by a
power-on reset. It is set automatically when the
PLL reaches its operating frequency.
0: PLL not locked
1: PLL locked
Bit 2 = LVDRF LVD reset flag
This bit indicates that the last Reset was generat-
ed by the LVD block. It is set by hardware (LVD re-
set) and cleared by software (writing zero). See
WDGRF flag description in
details. When the LVD is disabled by OPTION
BYTE, the LVDRF bit value is undefined.
Bit 1 = AVDF Voltage Detector flag
This read-only bit is set and cleared by hardware.
Table 8. System Integrity Register Map and Reset Values
36/124
1
Address
7
0
(Hex.)
003Ah
0
SICSR
Reset Value
0
Register
Label
0
LOCK
ED
Section 11.1
7
0
LVDRF AVDF AVDIE
6
0
for more
0
5
0
If the AVDIE bit is set, an interrupt request is gen-
erated when the AVDF bit is set. Refer to
21
0: V
1: V
Bit 0 = AVDIE Voltage Detector interrupt enable
This bit is set and cleared by software. It enables
an interrupt to be generated when the AVDF flag is
set. The pending interrupt information is automati-
cally cleared when software enters the AVD inter-
rupt routine.
0: AVD interrupt disabled
1: AVD interrupt enabled
Application notes
The LVDRF flag is not cleared when another RE-
SET type occurs (external or watchdog), the
LVDRF flag remains set to keep trace of the origi-
nal failure.
In this case, a watchdog reset can be detected by
software while an external reset can not.
for additional details
DD
DD
4
0
over AVD threshold
under AVD threshold
LOCKED
3
0
LVDRF
2
x
AVDF
1
0
AVDIE
Figure
0
0
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