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EM78M612BCM Datasheet(PDF) 8 Page - ELAN Microelectronics Corp |
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EM78M612BCM Datasheet(HTML) 8 Page - ELAN Microelectronics Corp |
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8 / 38 page  EM78M612 Universal Serial Bus Microcontroller Series This specification may change without further notice. 2004/4/28 V1.1 8 8.1 Program Memory The program space of the EM78M612 is 2K bytes, and is divided into two pages. Each page is 1K bytes long. After Reset, the 11-bit Program Counter (PC) points to location zero of the program space. It has two interrupt vectors, i.e., Interrupt Vectors at 0x0001 and USB Application Interrupt Vectors at 0x000A. The Interrupt Vector applies to TCC Interrupt, High Pattern Detecting Interrupt, Low Pattern Detecting Interrupt, and Port 5 State Changed Interrupt. The USB Application Interrupt Vector is for USB EndPoint Zero Interrupt, USB Suspend Interrupt, USB Reset interrupt ,and USB Host Resume Interrupt. After an interrupt, the MCU will fetch the next instruction from the corresponding address as illustrated in the following diagram. After reset Address 0x0000 Reset Vector 0x0001 Interrupt Vector 0x000A USB Application Interrupt Vector 0x03FF Page 0 0x0400 0x07FF Page 1 PC 8.2 Data Memory The Data Memory has 112 bytes SRAM space. It is also equipped with USB Application FIFO space for USB Application. The Figure 8.1 (next page) shows the organization of the Data Memory Space. |
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