ST72561J9-Auto STMicroelectronics, ST72561J9-Auto Datasheet - Page 38
ST72561J9-Auto
Manufacturer Part Number
ST72561J9-Auto
Description
8-bit MCU for automotive
Manufacturer
STMicroelectronics
Datasheet
1.ST72561R9-AUTO.pdf
(324 pages)
Specifications of ST72561J9-Auto
Hdflash Endurance
100 cycles, data retention 20 years at 55 °C
5 Power Saving Modes
halt, auto wake up from halt, active halt, wait and slow
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Central processing unit
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This bit is accessed by the JRMI and JRPL instructions.
Bit 1 = Z Zero.
This bit is set and cleared by hardware. This bit indicates that the result of the last
arithmetic, logical or data manipulation is zero.
This bit is accessed by the JREQ and JRNE test instructions.
Bit 0 = C Carry/borrow.
This bit is set and cleared by hardware and software. It indicates an overflow or an
underflow has occurred during the last arithmetic operation.
This bit is driven by the SCF and RCF instructions and tested by the JRC and JRNC
instructions. It is also affected by the “bit test and branch”, shift and rotate instructions.
Interrupt management bits
Bit 5,3 = I1, I0 Interrupt
The combination of the I1 and I0 bits gives the current interrupt software priority.
Table 7.
These two bits are set/cleared by hardware when entering in interrupt. The loaded value is
given by the corresponding bits in the interrupt software priority registers (IxSPR). They can
be also set/cleared by software with the RIM, SIM, IRET, HALT, WFI and PUSH/POP
instructions.
See the interrupt management chapter for more details.
Level 0 (main)
Level 1
Level 2
Level 3 (= interrupt disable)
0: The result of the last operation is different from zero.
1: The result of the last operation is zero.
0: No overflow or underflow has occurred.
1: An overflow or underflow has occurred.
Interrupt software priority selection
Interrupt software priority
Doc ID 12370 Rev 8
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0
0
1
I1
ST72561-Auto
0
1
0
1
I0
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