ST92F124R9TB STMicroelectronics, ST92F124R9TB Datasheet - Page 157
![IC MCU 8BIT 64K MEMORY 64-LQFP](/photos/12/15/121504/stmicroelectronics-64-lqfp_sml.jpg)
ST92F124R9TB
Manufacturer Part Number
ST92F124R9TB
Description
IC MCU 8BIT 64K MEMORY 64-LQFP
Manufacturer
STMicroelectronics
Series
ST9r
Datasheet
1.ST92F150CV1TB.pdf
(429 pages)
Specifications of ST92F124R9TB
Core Processor
ST9
Core Size
8/16-Bit
Speed
24MHz
Connectivity
I²C, SCI, SPI
Peripherals
DMA, LVD, POR, PWM, WDT
Number Of I /o
48
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
64-LQFP
Processor Series
ST92F12x
Core
ST9
Data Bus Width
8 bit, 16 bit
Data Ram Size
6 KB
Interface Type
CAN, I2C, SCI, SPI
Maximum Clock Frequency
24 MHz
Number Of Programmable I/os
80
Number Of Timers
16 bit
Operating Supply Voltage
4.5 V to 5.5 V
Maximum Operating Temperature
+ 105 C
Mounting Style
SMD/SMT
Development Tools By Supplier
ST92F150-EPB
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ST92F124R9TB
Manufacturer:
STMicroelectronics
Quantity:
10 000
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10 ON-CHIP PERIPHERALS
10.1 TIMER/WATCHDOG (WDT)
Important Note: This chapter is a generic descrip-
tion of the WDT peripheral. However depending
on the ST9 device, some or all of WDT interface
signals described may not be connected to exter-
nal pins. For the list of WDT pins present on the
ST9 device, refer to the device pinout description
in the first section of the data sheet.
10.1.1 Introduction
The Timer/Watchdog (WDT) peripheral consists of
a programmable 16-bit timer and an 8-bit prescal-
er. It can be used, for example, to:
– Generate periodic interrupts
– Measure input signal pulse widths
– Request an interrupt after a set number of events
– Generate an output signal waveform
– Act as a Watchdog timer to monitor system in-
Figure 87. Timer/Watchdog Block Diagram
tegrity
HW0SW1
WDIN
NMI
INT0
CLOCK CONTROL LOGIC
INEN INMD1 INMD2
WDGEN
INPUT
&
INTCLK/4
MUX
TLIS
IAOS
MUX
CONTROL LOGIC
INTERRUPT
WDT
CLOCK
8-BIT PRESCALER
The main WDT registers are:
– Control register for the input, output and interrupt
– 16-bit counter register pair (WDTHR, WDTLR)
– Prescaler register (WDTPR)
The hardware interface consists of up to five sig-
nals:
– WDIN External clock input
– WDOUT Square wave or PWM signal output
– INT0 External interrupt input
– NMI Non-Maskable Interrupt input
– HW0SW1 Hardware/Software Watchdog ena-
logic blocks (WDTCR)
ble.
WDTPR
OUTMD
OUTPUT CONTROL LOGIC
TOP LEVEL INTERRUPT REQUEST
RESET
INTA0 REQUEST
WROUT
DOWNCOUNTER
WDTRH, WDTRL
TIMER/WATCHDOG (WDT)
16-BIT
OUTEN
COUNT
END OF
WDOUT
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