TMS320VC5504 datasheet(23/128 Pages) TI

23 / 128 page

TMS320VC5504

Fixed-Point Digital Signal Processor

www.ti.com

SPRS609A – JUNE 2009 – REVISED JULY 2009

Table 3-7. RESET, Interrupts, and JTAG Terminal Functions

SIGNAL

TYPE(1)

OTHER(2)(3)

DESCRIPTION

NAME

NO.

RESET

External Flag Output. XF is used for signaling other processors in

multiprocessor configurations or XF can be used as a fast

general-purpose output pin.

–

XF is set high by the BSET XF instruction and XF is set low by the

O/Z

DVDDIO

BCLR XF instruction or by writing to bit 13 of the ST1_55 register. At

reset, the XF pin will be high. For more information on the ST1_55

number: SWPU073).

Device reset. RESET causes the DSP to terminate execution and loads

the program counter with the contents of the reset vector. When

RESET is brought to a high level, the reset vector in ROM at FFFF00h

IPU

forces the program execution to branch to the location of the on-chip

RESET

DVDDIO

ROM bootloader.

RESET affects the various registers and status bits.

The IPU resistor on this pin can be enabled or disabled via the

PDINHIBR2 register but will be forced ON when RESET is asserted.

JTAG

[For more detailed information on emulation header design guidelines, see the XDS560 Emulator Technical Reference (literature number:

SPRU589).]

IEEE standard 1149.1 test mode select. This serial control input is

clocked into the TAP controller on the rising edge of TCK.

If the emulation header is located greater than 6 inches from the

device, TMS must be buffered. In this case, the input buffer for TMS

needs pullup resistors connected to DVDDIO to hold these signals at a

IPU

TMS

known value when the emulator is not connected. A resistor value of

DVDDIO

4.7 k

Ω or greater is suggested. For board design guidelines related to

the emulation header, see the XDS560 Emulator Technical Reference

(literature number: SPRU589).

The IPU resistor on this pin can be enabled or disabled via the

PDINHIBR2 register.

IEEE standard 1149.1 test data output. The contents of the selected

of TCK. TDO is in the high-impedance (Hi-Z) state except when the

–

scanning of data is in progress.

TDO

O/Z

DVDDIO

For board design guidelines related to the emulation header, see the

XDS560 Emulator Technical Reference (literature number: SPRU589).

If the emulation header is located greater than 6 inches from the

device, TDO must be buffered.

IEEE standard 1149.1 test data input. TDI is clocked into the selected

If the emulation header is located greater than 6 inches from the

device, TDI must be buffered. In this case, the input buffer for TDI need

IPU

TDI

pull-up resistors connected to DVDDIO to hold these signals at a known

DVDDIO

value when the emulator is not connected. A resistor value of 4.7 k

Ω or

greater is suggested.

The IPU resistor on this pin can be enabled or disabled via the

PDINHIBR2 register.

(1)

I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal

(2)

IPD = Internal pulldown, IPU = Internal pullup. For more detailed information on pullup/pulldown resistors and situations where external

pullup/pulldown resistors are required, see Section 4.8.1, Pullup/Pulldown Resistors.

(3)

Specifies the operating I/O supply voltage for each signal

Submit Documentation Feedback

Device Overview

TMS320VC5504 Datasheet(PDF) 23 Page - Texas Instruments

TMS320VC5504 Datasheet(HTML) 23 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