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TMS370C340ANT Datasheet(PDF) 9 Page - Texas Instruments |
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TMS370C340ANT Datasheet(HTML) 9 Page - Texas Instruments |
9 / 69 page TMS370Cx4x 8-BIT MICROCONTROLLER SPNS016C -- NOVEMBER 1992 -- REVISED FEBRUARY 1997 9 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251--1443 memory map (continued) 256-Byte RAM (Register File/Stack) Reserved Peripheral File Reserved 256-Byte Data EEPROM Not Available 8K-Byte ROM or EPROM (0000h--7FFFh) 7FC0h Trap 15-0 7FE0h Reserved 7FECh Serial Comm I/F RX 7FEEh Timer 1 7FF0h Interrupt 3 7FF2h Interrupt 2 7FF4h Interrupt 1 7FF8h Reset 1000h Reserved 1010h System Control 1020h Digital Port Control 1030h ADC1 Peripheral Control 1040h Timer 1 Peripheral Control Vectors 7FDFh 7FEBh 7FEDh 7FEFh 7FF1h 7FF3h 7FF5h 7FF9h 100Fh 101Fh 102Fh 103Fh 104Fh -- -- -- -- -- -- -- -- -- -- -- -- -- 4K-Byte ROM (7000h--7FFFh) Not Available Reserved SCI1 Peripheral Control Timer 2A Peripheral Control Reserved A-D Converter 1 Timer 2A Serial Comm I/F TX 7FFAh 7FFBh -- -- 7FFCh 7FFDh -- 7FFEh 7FFFh -- -- 1050h 1060h 1070h 105Fh 106Fh 107Fh -- -- -- 1080h 10FFh -- 0000h 0100h 00FFh 1000h 10FFh 1100h 1EFFh 1F00h 1FFFh 2000h 5FFFh 6000h 6FFFh 7000h 7FBFh 7FC0h FFFFh 0FFFh 7FFFh 8000h Interrupts and Reset Vectors; Trap Vectors Reserved 7FF6h 7FF7h -- Figure 3. TMS370Cx4x Memory Map RAM/register file (RF) Locations within the RAM address space can serve as the RF, general-purpose read/write memory, program memory, or the stack instructions. The TMS370Cx4x devices contain 256 bytes of internal RAM memory mapped beginning at location 0000h (R0) and continuing through location 00FFh (R255). The first two registers, R0 and R1, are also called register A and B, respectively. Some instructions implicitly use register A or B; for example, the instruction LDSP (load SP) assumes that the value to be loaded into the stack pointer is contained in register B. Registers A and B are the only registers cleared on reset. peripheral file (PF) The TMS370Cx4x control registers contain all the registers necessary to operate the system and peripheral modules on the device. The instruction set includes some instructions that access the PF directly. These instructions designate the register by the number of the PF relative to 1000h, preceded by P0 for a hexadecimal designator or P for a decimal designator. For example, the system control register 0 (SCCR0) is located at address 1010h; its peripheral file hexadecimal designator is P010, and its decimal designator is P16. Table 4 shows the TMS370Cx4x PF address map. |
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