ST72F561J6T6 STMicroelectronics, ST72F561J6T6 Datasheet - Page 32
![MCU 8BIT 32KB FLASH 44-LQFP](/photos/6/84/68458/497-44-tqfp_44-lqfp_sml.jpg)
ST72F561J6T6
Manufacturer Part Number
ST72F561J6T6
Description
MCU 8BIT 32KB FLASH 44-LQFP
Manufacturer
STMicroelectronics
Series
ST7r
Datasheet
1.ST72F561K6T6.pdf
(265 pages)
Specifications of ST72F561J6T6
Core Processor
ST7
Core Size
8-Bit
Speed
8MHz
Connectivity
CAN, LINSCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
34
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
3.8 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-LQFP
Processor Series
ST72F5x
Core
ST7
Data Bus Width
8 bit
Data Ram Size
1 KB
Interface Type
CAN, SCI, SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
48
Number Of Timers
3
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Development Tools By Supplier
STX-RLINK
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 16 Channel
For Use With
497-8374 - BOARD DEVELOPMENT FOR ST72F561497-5046 - 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
497-5617
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ST72F561J6T6
Manufacturer:
STMicroelectronics
Quantity:
10 000
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ST72561
INTERRUPTS (Cont’d)
7.5 INTERRUPT REGISTER DESCRIPTION
CPU CC REGISTER INTERRUPT BITS
Read / Write
Reset Value: 111x 1010 (xAh)
Bit 5, 3 = I1, I0 Software Interrupt Priority
These two bits indicate the current interrupt soft-
ware priority.
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 pri-
ority registers (ISPRx).
They can be also set/cleared by software with the
RIM, SIM, HALT, WFI, IRET and PUSH/POP in-
structions (see “Interrupt Dedicated Instruction
Set” table).
*Note: TLI, TRAP and RESET events can interrupt
a level 3 program.
32/265
Level 0 (main)
Level 1
Level 2
Level 3 (= interrupt disable*)
Interrupt Software Priority
7
1
1
I1
H
I0
Level
High
Low
N
I1
1
0
1
Z
I0
0
1
0
1
C
0
INTERRUPT SOFTWARE PRIORITY REGIS-
TERS (ISPRX)
Read/Write (bit 7:4 of ISPR3 are read only)
Reset Value: 1111 1111 (FFh)
These four registers contain the interrupt software
priority of each interrupt vector.
– Each interrupt vector (except RESET and TRAP)
– Each I1_x and I0_x bit value in the ISPRx regis-
– Level 0 cannot be written (I1_x = 1, I0_x = 0). In
The RESET, TRAP and TLI vectors have no soft-
ware priorities. When one is serviced, the I1 and I0
bits of the CC register are both set.
*Note: Bits in the ISPRx registers which corre-
spond to the TLI can be read and written but they
are not significant in the interrupt process man-
agement.
Caution: If the I1_x and I0_x bits are modified
while the interrupt x is executed the following be-
havior has to be considered: If the interrupt x is still
pending (new interrupt or flag not cleared) and the
new software priority is higher than the previous
one, the interrupt x is re-entered. Otherwise, the
software priority stays unchanged up to the next
interrupt request (after the IRET of the interrupt x).
has corresponding bits in these registers where
its own software priority is stored. This corre-
spondence is shown in the following table.
ters has the same meaning as the I1 and I0 bits
in the CC register.
this case, the previously stored value is kept (Ex-
ample: previous = CFh, write = 64h,
result = 44h)
ISPR0
ISPR1
ISPR2
ISPR3
Vector address
FFFBh-FFFAh
FFE1h-FFE0h
FFF9h-FFF8h
I1_11 I0_11 I1_10 I0_10 I1_9
I1_3
I1_7
7
1
...
I0_3
I0_7
1
I1_2
I1_6
1
I0_2
I0_6
1
I1_13 and I0_13 bits
I1_0 and I0_0 bits*
I1_1 and I0_1 bits
I1_13 I0_13 I1_12 I0_12
I1_1
I1_5
ISPRx bits
I0_1
I0_5
I0_9
...
I1_0
I1_4
I1_8
I0_0
I0_4
I0_8
0
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