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TMS370 Datasheet(PDF) 9 Page - Texas Instruments |
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TMS370 Datasheet(HTML) 9 Page - Texas Instruments |
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9 / 63 page  TMS370CxCx 8-BIT MICROCONTROLLER SPNS040B – NOVEMBER 1995 – REVISED FEBRUARY 1997 9 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 peripheral file (PF) (continued) Table 4. TMS370CxCx Peripheral File Address Map ADDRESS RANGE PERIPHERAL FILE DESIGNATOR DESCRIPTION 1000h – 100Fh P000 – P00F Reserved 1010h – 101Fh P010 – P01F System and EPROM control registers 1020h – 102Fh P020 – P02F Digital I / O port control registers 1030h – 103Fh P030 – P03F Reserved 1040h – 104Fh P040 – P04F Timer 1 registers 1050h – 105Fh P050 – P05F Serial communications interface 2 registers 1060h – 106Fh P060 – P06F Reserved 1070h – 107Fh P070 – P07F Analog-to-digital converter 2 registers 1080h – 1FFFh P080 – P0FF Reserved program EPROM† The TMS370C6C2 device contains 8K bytes of EPROM mapped at location 6000h and continuing through location 7FFFh as shown in Figure 3. Reading the program EPROM modules is identical to reading other internal memory. During programming, the EPROM is controlled by the EPROM control register (EPCTL). The program EPROM module features include: D Programming – In-circuit programming capability if VPP is applied to MC – Control register: EPROM programming is controlled by the EPROM control register (EPCTL) located in the peripheral file (PF) frame at location P01Ch as shown in Table 5. D Write protection: Writes to the program EPROM are disabled under the following conditions: – Reset halts all programming to the EPROM module. – Low-power modes – 13 V not applied to MC Table 5. Data EEPROM and Program EPROM Control Registers Memory Map ADDRESS SYMBOL NAME P01A to P01B — Reserved P01C EPCTL Program EPROM Control Register program ROM† The program read-only memory (ROM) consists of 4K bytes of mask-programmable ROM. The program ROM is used for permanent storage of data or instructions. Programming of the mask ROM is performed at the time of device fabrication. Refer to Figure 3 for ROM memory map. † Memory addresses 7FE0h through 7FEBh are reserved for Texas Instruments, and addresses 7FECh through 7FFFh are reserved for interrupt and reset vectors. Trap vectors, used with TRAP0 through TRAP15 instructions, are located between addresses 7FC0h and 7FDFh. |
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