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TMS370C342AFNA Datasheet(PDF) 8 Page - Texas Instruments |
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TMS370C342AFNA Datasheet(HTML) 8 Page - Texas Instruments |
8 / 69 page TMS370Cx4x 8-BIT MICROCONTROLLER SPNS016C -- NOVEMBER 1992 -- REVISED FEBRUARY 1997 8 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251--1443 program counter (PC) (continued) Memory Program Counter (PC) 60 00 PCH PCL 60 00 0000h 7FFEh 7FFFh Figure 2. Program Counter After Reset memory map The TMS370Cx4x family architecture is based on the Von Neumann architecture, where the program memory and data memory share a common address space. All peripheral input/output is memory mapped in this same common address space. As shown in Figure 3, the TMS370Cx4x family provides memory-mapped RAM, ROM, data EEPROM, EPROM, input/output pins, peripheral functions, and system interrupt vectors. The peripheral file contains all input/output port control, peripheral status and control, EPROM and EEPROM memory programming, and system-wide control functions. The peripheral file is located between 1010h and 107Fh and is logically divided into seven peripheral file frames of 16 bytes each. Each on-chip peripheral is assigned to a separate frame through which peripheral control and data information is passed. |
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