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EM78P152S Arkusz danych(PDF) 9 Page - List of Unclassifed Manufacturers

Numer części EM78P152S
Szczegółowy opis  8-Bit Microcontroller with OTP ROM
PDF  52 Pages
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Producent  ETC1 [List of Unclassifed Manufacturers]
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EM78P152S Arkusz danych(HTML) 9 Page - List of Unclassifed Manufacturers

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EM78P152/3S
8-Bit Microcontroller with OTP ROM
5
Functional Description
Interrupt
Controller
ROM
Instruction
Register
Instruction
Decoder
R2
ALU
Stack
ACC
R3
R4
Oscillator/Timing
Control
WDT Timer
Prescaler
R1 (TCC)
RAM
DATA & CONTROL BUS
OSCI
OSCO
/RESET
TCC
/INT
I/O
Port 6
IOC6
R6
Built-in
OSC
P60
P61
P62/TCC
P63//REST
P64/OSCO
P65/OSCI
P66
P67
I/O
Port 5
IOC5
R6
P50
P51
P52
P53
Figure 5-1 EM78P153S Functional Block Diagram
5.1 Operational Registers
5.1.1 R0 (Indirect Addressing Register)
R0 is not a physically implemented register. It is used as an indirect addressing
pointer. Any instruction using R0 as a pointer actually accesses data pointed by the
RAM Select Register (R4).
5.1.2 R1 (Timer Clock /Counter)
Incremented by an external signal edge, which is defined by TE bit (CONT-4)
through the TCC pin, or by the instruction cycle clock.
Writable and readable as any other registers.
Defined by resetting PAB (CONT-3).
The prescaler is assigned to TCC, if the PAB bit (CONT-3) is reset.
The contents of the prescaler counter will be cleared only when the TCC register is
written with a value.
Product Specification (V1.8) 09.08.2009
• 5
(This specification is subject to change without further notice)



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