TMS570LS3137 datasheet(113/159 Pages) TI

113 / 159 page

tcyc(DMM)

th(DMM)

tl(DMM)

DMMSYNC

DMMCLK

DMMDATA

ssu(DMM)

sh(DMM)

dsu(DMM)

dh(DMM)

TMS570LS3137

www.ti.com

SPNS162.

– SEPTEMBER 2011

4.21.9 Data Modification Module (DMM)

The Data Modification Module (DMM) provides the capability to modify data in the entire 4 GB address

space of the TMS570 devices from an external peripheral, with minimal interruption of the application.

4.21.9.1 Features

The DMM module has the following features:

•

Acts as a bus master, thus enabling direct writes to the 4GB address space without CPU intervention

•

Writes to memory locations specified in the received packet (leverages packets defined by trace mode

of the RAM trace port (RTP) module

•

Writes received data to consecutive addresses, which are specified by the DMM module (leverages

packets defined by direct data mode of RTP module)

•

Configurable port width (1, 2, 4, 8, 16 pins)

•

Up to 100 Mbit/s pin data rate

•

Unused pins configurable as GIO pins

4.21.9.2 Timing Specifications

Figure 4-27. DMMCLK Timing

Table 4-46. DMMCLK Timing

Parameter

MIN

Description

tcyc(DMM)

tc(HCLK) * 2

Clock period

th(DMM)

((tcyc(DMM))/2) - ((tr+tf)/2)

High pulse width

tl(DMM)

((tcyc(DMM))/2) - ((tr+tf)/2)

Low pulse width

Figure 4-28. DMMDATA Timing

System Information and Electrical Specifications

113

Submit Documentation Feedback

focus.ti.com: TMS570LS3137

TMS570LS3137 Datenblatt(PDF) 113 Page - Texas Instruments

TMS570LS3137 Datenblatt(HTML) 113 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

Datenblatt Download

Link URL