ST72334N4 STMicroelectronics, ST72334N4 Datasheet - Page 21

• Manufacturer Part Number: ST72334N4
• Description: 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY,ADC, 16-BIT TIMERS, SPI, SCI INTERFACES
• Manufacturer: STMicroelectronics

Specifications of ST72334N4

• Clock Sources: crystal/ceramic resonator oscillators or RC oscillators, external clock, backup Clock Security System
• 4 Power Saving Modes: Halt, Active-Halt, Wait and Slow
• Two 16-bit Timers With: 2 input captures (only one on timer A), 2 output compares (only one on timer A), External clock input on timer A, PWM and Pulse generator modes

DATA EEPROM (Cont’d)
6.6 REGISTER DESCRIPTION
CONTROL/STATUS REGISTER (CSR)
Read /Write
Reset Value: 0000 0000 (00h)
Bit 7:3 = Reserved, forced by hardware to 0.
Bit 2 = IE Interrupt enable
This bit is set and cleared by software. It enables the
Data EEPROM interrupt capability when the PGM
bit is cleared by hardware. The interrupt request is
automatically cleared when the software enters the
interrupt routine.
0: Interrupt disabled
1: Interrupt enabled
7
0
0
0
0
0
IE
LAT
PGM
0
Bit 1 = LAT Latch Access Transfer
This bit is set by software. It is cleared by hard-
ware at the end of the programming cycle. It can
only be cleared by software if PGM bit is cleared.
0: Read mode
1: Write mode
Bit 0 = PGM Programming control and status
This bit is set by software to begin the programming
cycle. At the end of the programming cycle, this bit
is cleared by hardware and an interrupt is generated
if the ITE bit is set.
0: Programming finished or not yet started
1: Programming cycle is in progress
Note: if the PGM bit is cleared during the program-
ming cycle, the memory data is not guaranteed
ST72334J/N, ST72314J/N, ST72124J
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