TMS320DM643 datasheet(29/160 Pages) TI

29 / 160 page

www.ti.com

TMS320DM643

Video/Imaging Fixed-Point Digital Signal Processor

SPRS269A – FEBRUARY 2005 – REVISED APRIL 2005

Table 2-4. Terminal Functions (continued)

SIGNAL

IPD/

TYPE(1)

DESCRIPTION

IPU(2)

NAME

NO.

GP0[15]

GP0[14]

GP0[13]

General-purpose input/output GP0[15:9] pins (I/O/Z).

GP0[12]

Note: By default, no function is enabled upon reset. To configure these pins, see

I/O/Z

the Device Configuration section of this data sheet.

GP0[11]

GP0[10]

GP0[9]

GP0[3]

IPD

GP0 3 pin (I/O/Z)

General-purpose 0 pin (GP0[0]) (I/O/Z) [default]

This pin can be programmed as GPIO 0 (input only) [default] or as GP0[0]

(output only) pin or output as a general-purpose interrupt (GP0INT) signal

GP0[0]

I/O/Z

IPD

(output only).

Note: This pin must remain low during device reset.

VCXO Interpolated Control Port (VIC) single-bit digital-to-analog converter

VDAC/GP0[8](3)

AD1

I/O/Z

IPD

(VDAC) output [output only] [default] or this pin can be programmed as a GP0 8

pin (I/O/Z).

Clock output at 1/6 of the device speed (O/Z) [default] or this pin can be

CLKOUT6/GP0[2](3)

I/O/Z

IPD

programmed as a GP0 2 pin (I/O/Z).

Clock output at 1/4 of the device speed (O/Z) [default] or this pin can be

CLKOUT4/GP0[1](3)

I/O/Z

IPD

programmed as a GP0 1 pin (I/O/Z).

HOST-PORT INTERFACE (HPI) or EMAC

HINT

O/Z

Host interrupt from DSP to host (O).

HCNTL1

Host control – selects between control, address, or data registers (I).

HCNTL0

Host control – selects between control, address, or data registers (I).

Host half-word select – first or second half-word (not necessarily high or low

HHWIL

order). [For HPI16 bus width selection only] (I).

HR/W

Host read or write select (I).

HAS

Host address strobe (I)

Host chip select (I)

HCS

Host data strobe 1 (I)

HDS1

Host data strobe 2 (I)

Note: If unused, the following HPI control signals should be externally pulled

HDS2

high.

HRDY

O/Z

Host ready from DSP to host (O)

Device Overview

TMS320DM643 Datasheet(PDF) 29 Page - Texas Instruments

TMS320DM643 Datasheet(HTML) 29 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