TMS320P15 datasheet(49/146 Pages) TI

49 / 146 page

TMS320E14, TMS320P14

DIGITAL SIGNAL PROCESSORS

SPRS009C – JANUARY 1987 – REVISED JULY 1991

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77001

TERMINAL FUNCTIONS (TMS320E14/P14)

NAME

I/O

DEFINITION

A12(MSB)-A0(LSB)

CLKIN

EPT

GND

PGM

Q8(MSB)-Q1(LSB)

VCC

VPP

I/O

On-chip EPROM programming address lines

Clock oscillator input

EPROM chip enable

EPROM test mode select

EPROM output enable

Ground

EPROM write/program select

Data lines for byte-wide programming of on-chip 8K bytes of EPROM

Reset for initializing the device

5-V to 6.5-V power supply

12.5-V to 13-V power supply

Table 4 shows the programming levels required for programming, verifying, reading, and protecting the EPROM

cell.

Table 4. TMS320E14/P14 Programming Mode Levels

SIGNAL

NAME†

TMS320E14/P14

TMS27C64

PROGRAM

VERIFY

READ

EPROM

PROTECT

VERIFY

VIL

VIH

VIL

VIH

PULSE

VIH

VIL

PGM

PULSE

VIH

VPP

VCC

VPP

VCCP

VCC

4,33

VCCP

VCC

VCCP

VSS

3,34

VSS

CLKIN

VSS

EPT

VSS

VPP

Q1-Q8

42, 41, 38, 37,

32-29

11–13, 15-19,

Data In

Data Out

Q8 = PULSE

Q8 = RBIT

A12-A7

15, 11, 10, 8, 7, 2

2, 23, 21, 24,

25, 3

ADDR

VIL

ADDR

VIH

A3-A0

66, 65, 56, 55

7-10

ADDR

† Signal names shown for

′E14/P14 EPROM programming mode only.

Legend:

VIH

= TTL high level; VIL = TTL low level; ADDR = byte address bit; VPP = 12.5 V ± 0.25 V (FAST) or 13 V ± 0.25 V (SNAP! Pulse).

VCC =5 V ± 0.25 V; X = don’t care; PULSE = low-going TTL pulse.

DIN

= byte to be programmed at ADDR; QOUT = byte stored at ADDR.; RBIT = ROM protect bit

VCCP =6 V ± 0.25 V (FAST) or 6.5 V ± 0.25 V (SNAP! Pulse).

programming

Since every memory in the cell is at a logic high, the programming operation reprograms selected bits to low.

Once the

′320E14 is programmed, these bits can only be erased using ultraviolet light. The correct byte is placed

on the data bus with VPP set to the 12.5-V level. The PGM pin is then pulsed low to program in the zeros.

TMS320P15 Datasheet(PDF) 49 Page - Texas Instruments

TMS320P15 Datasheet(HTML) 49 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL