參數(shù)資料
型號: TMS320LC17
廠商: Texas Instruments, Inc.
元件分類: 數(shù)字信號處理
英文描述: Digital Signal Processors(278ns指令周期,分離的程序和數(shù)據(jù)總線,外部輪詢中斷的DSP)
中文描述: 數(shù)字信號處理器(278ns指令周期,分離的程序和數(shù)據(jù)總線,外部輪詢中斷的數(shù)字信號處理器)
文件頁數(shù): 115/139頁
文件大?。?/td> 1478K
代理商: TMS320LC17
TMS320E17, TMS320P17
DIGITAL SIGNAL PROCESSORS
SPRS009C–JANUARY 1987–REVISED JULY 1991
POST OFFICE BOX 1443
HOUSTON, TEXAS 77001
115
PROGRAMMING THE TMS320E17/P17 EPROM CELL
Each
E17/P17 devices include a 4K
×
16-bit industry-standard EPROM cell for prototyping, early field testing,
and low-volume production. In conjunction with this EPROM, the TMS320C17 with a 4K-word masked ROM,
then, provides more migration paths for cost-effective production.
Note: The TMS320P17 is a one-time programmable (OTP) EPROM device.
EPROM adapter sockets are available that provide pin-to-pin conversions for programming any
E17/P17
devices. One adapter socket (part number RTC/PGM320C-06), shown in Figure 19, converts a 40-pin DIP into
an equivalent 28-pin device. Another socket (part number RTC/PGM320C-06), not shown, permits 44- to 28-pin
conversion.
Figure 19. EPROM Adapter Socket (40-Pin to 28-Pin DIP Conversion)
Key features of the EPROM cell include the normal programming operation as well as verification. The EPROM
cell also includes a code protection feature that allows code to be protected against copyright violations.
The
E17/P17 EPROM cell is programmed using the same family and device pinout codes as the TMS27C64
8K
×
8-bit EPROM. The TMS27C64 EPROM series are unltraviolet-light erasable, electrically programmable,
read-only memories, fabricated using HVCMOS technology. They are pin-compatible with existing 28-pin
ROMs and EPROMs. These EPROMs operate from a single 5-V supply in the read mode; however, a 12.5-V
supply is needed for programming. All programming signals are TTL level. For programming outside the system,
existing EPROM programmers can be used. Locations may be programmed singly, in blocks, or at random.
Figure 20 shows the wiring conversion to program the
E17/P17 using the 28-pin pinout of the TMS27C64.
Table 8 on pin nomenclature provides a description of the TMS27C64 pins. The code to be programmed into
the device should be in serial mode. The
E17/P17 devices use 13 address lines to address 4K-word memory
in byte format.
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