Adv ance informa tion – Texas Instruments TMS320C6202 User Manual

Page 54

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TMS320C6202
FIXED-POINT DIGITAL SIGNAL PROCESSOR

SPRS072B – AUGUST 1998 – REVISED AUGUST 1999

54

POST OFFICE BOX 1443

HOUSTON, TEXAS 77251–1443

EXPANSION BUS SYNCHRONOUS HOST PORT TIMING (CONTINUED)

Addr

D1

D2

15

14

12

11

8

7

6

5

4

4

2

2

1

1

XCLKIN

XAS

XW/R†

XW/R†

XBLAST‡

XD[31:0]

XRDY

XBOFF

XHOLD¶

XHOLDA¶

XHOLD#

XHOLDA#

XBE[3:0]/XA[5:2]§

† XW/R input/output polarity selected at boot
‡ XBLAST output polarity is always active low.
§ XBE[3:0]/XA[5:2] operates as byte enables XBE[3:0] during host-port accesses.
¶ Internal arbiter enabled
# External arbiter enabled
|| This diagram illustrates XBOFF timing. Bus arbitration timing is shown in Figure 38 and Figure 39.

Figure 35. ’C6202 as Bus Master—BOFF Operation

||

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