TMS320P15 datasheet(65/146 Pages) TI

65 / 146 page

TMS320E15, TMS320P15

DIGITAL SIGNAL PROCESSORS

SPRS009C – JANUARY 1987 – REVISED JULY 1991

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77001

PROGRAMMING THE TMS320E15/P15 EPROM CELL

′E15/P15 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

′E15/P15 with a 4K-word masked ROM, then,

provide more migration paths for cost-effective production.

EPROM adapter sockets are available that provide pin-to-pin conversions for programming any

′E15/P15

devices. One adapter socket (part number RTC/PGM320C-06), shown in Figure 8, converts a 40-pin DIP device

into an equivalent 28-pin device. Another socket (part number RTC/PGM320A-06), not shown, permits 44- to

28-pin conversion.

Figure 8. 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

′E15/P15 EPROM cell is programmed using the same family and device pinout codes as the TMS27C64

× 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 9 shows the wiring conversion to program the

′E15/P15 using the 28-pin pinout of the TMS27C64.

Table 5 on pin nomenclature provides a description of the TMS27C64 pins. The code to be programmed into

the device should be in serial mode. The

′E15/P15 devices use 13 address lines to address 4K-word memory

in byte format.

TMS320P15 Datasheet(PDF) 65 Page - Texas Instruments