ST72F264G2B6 STMicroelectronics, ST72F264G2B6 Datasheet - Page 205

• Manufacturer Part Number: ST72F264G2B6
• Description: MCU 8-BIT 8K FLASH 32-SDIP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72F264G2B6

• Mfg Application Notes: ST7 Checksum Capability, AN1070 App Note
• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-SDIP (0.400", 10.16mm)
• Processor Series: ST72F2x
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: I2C, SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 22
• Number Of Timers: 3
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• Development Tools By Supplier: ST7F264-IND/USB, ST72F34X-SK/RAIS, ST7MDT10-DVP3, ST7MDT10-EMU3, STX-RLINK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 6 Channel
• For Use With: 497-6423 - BOARD EVAL BASED ON ST72264G1497-5046 - KIT TOOL FOR ST7/UPSD/STR7 MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: 497-5570

Table 156. ITC_TLISensitivity
Note: This function is for ST72F521, ST72F561 and ST72325 devices.
EXAMPLE:
The following C program shows the use of the ITC library functions.
Program description:
This program is written for the ST72F521 device. It sets the Software priority level for EI0 Ex-
ternal interrupt & TIMERA peripheral interrupt to Level2. Then it sets the software priority of
EI2 to Level1. The sensitivity of PA0 (EI0 interrupt pin in ST72F521) and PF0 (EI2) interrupt is
set to falling edge. The TLI interrupt is enabled and the sensitivity of the TLI pin is set to Falling
edge. A falling edge is applied on the PF0 pin (configured as input interrupt) to generate an
EI2 interrupt. Immediately after this, a falling edge is applied on the PA0 pin. As the priority of
the EI0 interrupt is higher than EI2, the EI2 interrupt is interrupted and control goes to EI0.
Then TLI interrupt is generated by applying a falling edge on the TLI pin. The LEDs connected
to the Port D pins are toggled by the interrupt subroutines.
/* Example code for ITC for ST72F521 */
#include "ST7lib_config.h"
//prototype declarations
void TLI_IT_Routine (void);
void EI0_IT_Routine(void);
void EI2_IT_Routine(void);
void main(void);
void main (void)
{
Function Name
Function Prototype
Behaviour Description
Input Parameters
Output Parameters
Required Preconditions
Functions called
Postconditions
See also
unsigned char Pin = 0;
ITC_LEVEL Priority = IT_LEVEL_2;
ITC_Init ();
ITC_TLISensitivity
Void ITC_TLISensitivity (ITC_Sensitivity Edge)
Sets the TLI sensitivity to falling edge or rising edge as per
the Input parameter selected.
IT_EDGE_R
TLI pin is made rising edge sensitive
IT_EDGE_F
TLI pin is made falling edge sensitive
None
ITC_DisableTLI must have been called.
None
None
None
/*Variable Declaration*/
Function Descriptions
/* Initialise ITC */
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