參數(shù)資料
型號(hào)： TMS370C340A
廠商： Texas Instruments, Inc.
元件分類： 8位微控制器
英文描述： 8-BIT MICROCONTROLLER
中文描述： 8位微控制器
文件頁數(shù)： 9/54頁
文件大?。?/td> 785K
代理商： TMS370C340A
TMS370Cx9x
8-BIT MICROCONTROLLER
SPNS036B – JANUARY 1996 – REVISED FEBRUARY 1997
9
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
CPU (continued)
Peripheral File Control Registers
Reserved
System Control
Digital Port Control
Reserved
Timer 1 Peripheral Control
Reserved
ADC3 Peripheral Control
1000h–100Fh
1010h–101Fh
1020h–102Fh
1030h–103Fh
1040h–104Fh
1050h–106Fh
1070h–107Fh
Vectors
Trap 0–15
Reserved
7FC0h–7FDFh
7FE0h–7FEBh
7FECh–7FEDh
7FEEh–7FF3h
7FF4h–7FF5h
7FF6h–7FF7h
7FF8h–7FF9h
7FFAh–7FFBh
7FFCh–7FFDh
7FFEh–7FFFh
Analog-to-Digital Converter 3
Reserved
Timer 1
Reserved
Reserved
Reserved
Interrupt 1
Reset
0000h
0080h
1000h
107Fh
1080h
1EFFh
1F00h
Interrupts and Reset Vectors; Trap Vectors
FFFFh
Reserved = the address space is reserved for future expansion.
Not available = address space is unavailable in the mode illustrated.
Reserved
8K-Byte EPROM (6000h–7FFFh)
1FFFh
2000h
7FC0h
7FFFh
8000h
Peripheral File
256-Byte Data EEPROM
Reserved
Not Available
007Fh
128-Byte RAM (0000h – 007Fh)
(Register File/Stack)
0FFFh
Not Available
4K-Byte ROM (7000h–7FFFh)
5FFFh
6000h
6FFFh
7000h
7FBFh
Figure 3. TMS370Cx9x Memory Map
RAM/register file (RF)
Locations within RAM address space can serve as the register file, general-purpose read/write memory,
program memory, or stack instructions. The TMS370Cx9x device contains 128 bytes of internal RAM mapped
beginning at location 0000h (R0) and continuing through location 007Fh (R127) which is shown in Figure 3.
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 TMS370Cx9x 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 peripheral file (PF)
directly. These instructions designate the register by the number of the PF relative to 1000h, preceded by P0
for a hexadecimal designator or by 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 TMS370Cx9x peripheral files address map.
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