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ST7263BK2M1 Datasheet(PDF) 8 Page - STMicroelectronics

No. de pieza ST7263BK2M1
Descripción Electrónicos  LOW SPEED USB 8-BIT MCU FAMILY WITH FLASH/ROM, UP TO 512 BYTES RAM, 8-BIT ADC, WDG, TIMER, SCI & I짼C
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7263BK2M1 Datasheet(HTML) 8 Page - STMicroelectronics

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3 REGISTER & MEMORY MAP
As shown in Figure 4, the MCU is capable of ad-
dressing 64 Kbytes of memories and I/O registers.
The available memory locations consist of up to
512 bytes of RAM including 64 bytes of register lo-
cations, and up to 16K bytes of user program
memory in which the upper 32 bytes are reserved
for interrupt vectors. The RAM space includes up
to 128 bytes for the stack from 0100h to 017Fh.
The highest address bytes contain the user reset
and interrupt vectors.
IMPORTANT:
Memory
locations
noted
“Re-
served” must never be accessed. Accessing a re-
served area can have unpredictable effects on the
device.
Figure 4. Memory Map
* Program memory and RAM sizes are product dependent (see Table 1, "Device Summary")
Table 3. Interrupt Vector Map
Vector Address
Description
Masked by
Remarks
Exit from Halt Mode
FFE0h-FFEDh
FFEEh-FFEFh
FFF0h-FFF1h
FFF2h-FFF3h
FFF4h-FFF5h
FFF6h-FFF7h
FFF8h-FFF9h
FFFAh-FFFBh
FFFCh-FFFDh
FFFEh-FFFFh
Reserved Area
USB Interrupt Vector
SCI Interrupt Vector
I²C Interrupt Vector
TIMER Interrupt Vector
IT1 to IT8 Interrupt Vector
USB End Suspend Mode Interrupt Vector
Flash Start Programming Interrupt Vector
TRAP (software) Interrupt Vector
RESET Vector
I- bit
I- bit
I- bit
I- bit
I- bit
I- bit
I- bit
None
None
Internal Interrupt
Internal Interrupt
Internal Interrupt
Internal Interrupt
External Interrupt
External Interrupts
Internal Interrupt
CPU Interrupt
No
No
No
No
Yes
Yes
Yes
No
Yes
0000h
RAM
Program Memory*
(4/8/16 KBytes)
Interrupt & Reset Vectors
HW Registers
0040h
003Fh
FFDFh
FFE0h
FFFFh
Reserved
Stack
(128 Bytes)
0100h
017Fh
01BF/023Fh
01C0/0240h
00FFh
0040h
0180h
01BF/023Fh
Short Addressing
RAM (192 bytes)
16-bit Addressing
RAM
C000h
BFFFh
(See Table 4)
(See Table 3)
(384/512 Bytes)
FFDFh
C000h
F000h
E000h
4 KBytes
8 KBytes
16 KBytes


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