ST72F63BE6M1 STMicroelectronics, ST72F63BE6M1 Datasheet - Page 31
ST72F63BE6M1
Manufacturer Part Number
ST72F63BE6M1
Description
IC MCU 8BIT 32K FLASH 24-SOIC
Manufacturer
STMicroelectronics
Series
ST7r
Datasheet
1.ST72F63BD6U1TR.pdf
(186 pages)
Specifications of ST72F63BE6M1
Core Processor
ST7
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, SCI, USB
Peripherals
DMA, LVD, POR, PWM, WDT
Number Of I /o
14
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Oscillator Type
External
Operating Temperature
0°C ~ 70°C
Package / Case
24-SOIC (7.5mm Width)
Data Converters
A/D 12x8b
Processor Series
ST72F6x
Core
ST7
Data Bus Width
8 bit
Data Ram Size
1 KB
Interface Type
I2C, SCI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
14
Number Of Timers
1
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
Development Tools By Supplier
ST72F63B-SK/RAIS, ST7MDTU3-EMU3, STX-RLINK
Minimum Operating Temperature
0 C
For Use With
497-5521 - EVAL BOARD LOW SPEED USB
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
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ST7263Bxx
pointed to by the SP. Then the other registers are stored in the next locations as shown in
Figure
●
●
A subroutine call occupies two locations and an interrupt five locations in the stack area.
Figure 10. Stack manipulation example
Figure 11. CPU registers
@ 0100h
@ 017Fh
RESET VALUE = STACK HIGHER ADDRESS
SP
RESET VALUE = RESET VECTOR @ FFFEh-FFFFh
15
15
When an interrupt is received, the SP is decremented and the context is pushed on the
stack.
On return from interrupt, the SP is incremented and the context is popped from the
stack.
10.
Subroutine
Stack Higher Address = 017Fh
Stack Lower Address = 0100h
RESET VALUE = 1
CALL
PCH
PCL
PCH
SP
8
8 7
RESET VALUE = XXh
RESET VALUE = XXh
RESET VALUE = XXh
7
7
7
1
7
Interrupt
7
Event
PCH
PCL
PCH
PCL
1 1 X 1 X X
1 1 H I
CC
A
X
PCL
SP
Doc ID 7516 Rev 8
N Z
PUSH Y
PCH
PCH
PCL
PCL
0
0
0
0
X
0
0
C
CC
Y
A
X
SP
ACCUMULATOR
X INDEX REGISTER
Y INDEX REGISTER
PROGRAM COUNTER
CONDITION CODE REGISTER
STACK POINTER
POP Y
PCH
PCH
PCL
PCL
CC
A
X
SP
IRET
PCH
PCL
Central processing unit
X = undefined value
SP
or RSP
RET
31/186
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