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HT82A525R Datasheet(PDF) 14 Page - Holtek Semiconductor Inc |
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HT82A525R Datasheet(HTML) 14 Page - Holtek Semiconductor Inc |
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14 / 71 page  Special Vectors Within the Program Memory, certain locations are reserved for special usage such as reset and interrupts. · Location 000H Location 000H is reserved for program initialization. After a chip reset, the program always begins execution at this location. · Location 004H Location 004H is reserved for the external interrupt service program. If the INT input pin is activated, and the interrupt is enabled, and the stack is not full, the program begins execution at location 004H. · Location 008H Location 008H is reserved for the Timer/Event Counter 0 interrupt service program. If a timer interrupt results from a Timer/Event Counter 0 overflow, and if the interrupt is enabled and the stack is not full, the program begins execution at location 008H. · Location 00CH Location 00CH is reserved for the Timer/Event Counter 1 interrupt service program. If a timer interrupt results from a Timer/Event Counter 1 overflow, and if the interrupt is enabled and the stack is not full, the program begins execution at location 00CH. · Location 010H Location 010H is reserved for the USB interrupt service program. If the USB interrupt is activated, the interrupt is enabled and the stack is not full, the program begins execution at location 010H. · Location 014H Location 014H is reserved for the Serial Interface 1. When 8 bits data have been received or transmitted successfully from this Serial Interface 1, the related interrupts are enabled, and the stack is not full, the program begins execution at location 014H. HT82A525R I/O Type USB 8-Bit OTP MCU with SPI Rev. 1.80 14 March 11, 2016 S e r i a l I n t e r f a c e 2 I n t e r r u p t S u b r o u t i n e P r o g r a m M e m o r y L o o k - u p T a b l e ( 2 5 6 w o r d s ) L o o k - u p T a b l e ( 2 5 6 w o r d s ) N o t e : n r a n g e s f r o m 0 t o F n F F H F F F H F 0 0 H 1 5 b i t s n 0 0 H T i m e r / E v e n t C o u n t e r 0 I n t e r r u p t S u b r o u t i n e S e r i a l I n t e r f a c e 1 I n t e r r u p t S u b r o u t i n e T i m e r / E v e n t C o u n t e r 1 I n t e r r u p t S u b r o u t i n e D e v i c e I n i t i a l i z a t i o n P r o g r a m E x t e r n a l I n t e r r u p t S u b r o u t i n e 0 0 0 H 0 0 4 H 0 0 8 H 0 0 C H 0 1 0 H 0 1 8 H U S B I n t e r r u p t S u b r o u t i n e 0 1 4 H Program Memory |
Similar Part No. - HT82A525R_16 |
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Similar Description - HT82A525R_16 |
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