深圳龙芯世纪科技专业CPLD芯片解密研究所

　　深圳龙芯世纪科技专业CPLD芯片解密研究所，多名资深芯片解密工程师，针对CPLD每款单片机进行了反复试验与研究，现面向国内外广大需求客户，提供优质可靠、价格优惠的CPLD系列芯片解密合作项目，欢迎需求客户与龙芯世纪商务联系，我们竭诚为您服务。
　　1. Memory Spaces
　　The 78K/0 Series product program memory map varies depending on the internal memory capacity. For detailsof memory-mapped address area, refer to the user’s manual of each product.
　　2. Internal Program Memory (Internal ROM) Space
　　Each 78K/0 Series product has internal ROM in the address space. Program and table data, etc. are storedin the ROM. Normally, this memory space is addressed by the program counter (PC). For details of the internalROM space, refer to the user’s manual of each product.
　　3. Vector Table Area
　　The 64-byte area 0000H to 003FH is reserved as a vector table area. The program start addresses for branchupon RESET input or interrupt request generation are stored in the vector table area. Of the 16-bit address, thelower 8 bits are stored at even addresses and the higher 8 bits are stored at odd addresses. For the vector table
　　area, refer to the user’s manual of each product.
　　4. CALLT Instruction Table Area
　　The 64-byte area 0040H to 007FH can store the subroutine entry address of a 1-byte call instruction (CALLT).
　　5. CALLF Instruction Entry Area
　　The 2048-byte area 0800H to 0FFFH can perform a direct subroutine call with a 2-byte call instruction (CALLF).
　　6. Internal Data Memory (Internal RAM) Space
　　78K/0 Series products incorporate the following RAMs. For details of these RAMs, refer to the user’s manualof each product.
　　(1) Internal high-speed RAM
　　Each 78K/0 Series product incorporates an internal high-speed RAM. In the 32-byte area FEE0H to FEFFHof these areas, 4 banks of general-purpose registers, each bank consisting of eight 8-bit registers, areallocated.
　　The internal high-speed RAM can also be used as a stack memory.
　　(2) Buffer RAM
　　There are some products in the 78K/0 Series to which buffer RAM is allocated. This RAM is used to storethe transfer/receive data of serial interface channel 1 (3-wire serial I/O mode with automatic transfer/receivefunction). If not used in this mode, the buffer RAM can also be used as an ordinary RAM area.
　　(3) RAM for VFD display
　　There are some products in the 78K/0 Series to which RAM for VFD display is allocated. This RAM canalso be used as an ordinary RAM area.
　　(4) Internal expansion RAM
　　There are some products in the 78K/0 Series to which internal expansion RAM is allocated.
　　(5) RAM for LCD display
　　There are some products in the 78K/0 Series to which RAM for LCD display is allocated. This RAM canalso be used as an ordinary RAM area.
　　国内独家CPLD芯片解密技术，针对每款NEC单片机进行了开片功能研究，如果您想抢占市场先机，如果，您的产品独一无二，欢迎联系龙芯世纪商务中心，我们竭诚为您服务。
　　龙芯世纪NEC芯片解密联系方式：
　　公司地址：深圳福田区福虹路世贸广场荟景豪庭12F
　　地区邮编：518033
　　公司传真：086-0755-83676377
　　24小时业务服务热线：086-0755- 83690800
　　24小时技术咨询热线：086-0755- 83676323
　　电子商务中心服务热线：086-0755-83757007
　　联系邮箱（Email）：market2@pcblab.net