ATTINY2313V-10PJ Atmel, ATTINY2313V-10PJ Datasheet - Page 11
![IC MCU AVR 2K FLASH 20DIP](/photos/6/80/68043/313-20-dip_sml.jpg)
ATTINY2313V-10PJ
Manufacturer Part Number
ATTINY2313V-10PJ
Description
IC MCU AVR 2K FLASH 20DIP
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY2313V-10PJ
Core Processor
AVR
Core Size
8-Bit
Speed
10MHz
Connectivity
SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
18
Program Memory Size
2KB (1K x 16)
Program Memory Type
FLASH
Eeprom Size
128 x 8
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
20-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
Other names
ATTINY2313V-12PJ
ATTINY2313V-12PJ
ATTINY2313V-12PJ
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Stack Pointer
Instruction
Execution Timing
2543L–AVR–08/10
The Stack is mainly used for storing temporary data, for storing local variables and for storing
return addresses after interrupts and subroutine calls. The Stack Pointer Register always points
to the top of the Stack. Note that the Stack is implemented as growing from higher memory loca-
tions to lower memory locations. This implies that a Stack PUSH command decreases the Stack
Pointer.
The Stack Pointer points to the data SRAM Stack area where the Subroutine and Interrupt
Stacks are located. This Stack space in the data SRAM must be defined by the program before
any subroutine calls are executed or interrupts are enabled. The Stack Pointer must be set to
point above 0x60. The Stack Pointer is decremented by one when data is pushed onto the Stack
with the PUSH instruction, and it is decremented by two when the return address is pushed onto
the Stack with subroutine call or interrupt. The Stack Pointer is incremented by one when data is
popped from the Stack with the POP instruction, and it is incremented by two when data is
popped from the Stack with return from subroutine RET or return from interrupt RETI.
The AVR Stack Pointer is implemented as two 8-bit registers in the I/O space. The number of
bits actually used is implementation dependent. Note that the data space in some implementa-
tions of the AVR architecture is so small that only SPL is needed. In this case, the SPH Register
will not be present.
This section describes the general access timing concepts for instruction execution. The AVR
CPU is driven by the CPU clock clk
chip. No internal clock division is used.
Figure 6
vard architecture and the fast-access Register File concept. This is the basic pipelining concept
to obtain up to 1 MIPS per MHz with the corresponding unique results for functions per cost,
functions per clocks, and functions per power-unit.
Figure 6. The Parallel Instruction Fetches and Instruction Executions
Figure 7
operation using two register operands is executed, and the result is stored back to the destina-
tion register.
Bit
Read/Write
Initial Value
2nd Instruction Execute
3rd Instruction Execute
1st Instruction Execute
2nd Instruction Fetch
3rd Instruction Fetch
4th Instruction Fetch
1st Instruction Fetch
shows the parallel instruction fetches and instruction executions enabled by the Har-
shows the internal timing concept for the Register File. In a single clock cycle an ALU
RAMEND
RAMEND
SP7
R/W
15
R
–
7
clk
RAMEND
RAMEND
CPU
SP6
R/W
14
R
–
6
RAMEND
RAMEND
SP5
R/W
13
R
–
5
CPU
T1
, directly generated from the selected clock source for the
RAMEND
RAMEND
R/W
SP4
12
R
–
4
RAMEND
RAMEND
R/W
SP3
11
R
–
3
T2
RAMEND
RAMEND
SP2
R/W
10
R
–
2
RAMEND
RAMEND
SP1
R/W
R
9
–
1
T3
RAMEND
RAMEND
SP0
R/W
R
8
–
0
SPH
SPL
T4
11
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