參數(shù)資料
型號: 5962-9162303MXC
廠商: TEXAS INSTRUMENTS INC
元件分類: 圖形處理器
英文描述: GRAPHICS PROCESSOR, CPGA145
封裝: CERAMIC, PGA-145
文件頁數(shù): 86/98頁
文件大小: 1546K
代理商: 5962-9162303MXC
SMJ34020A
GRAPHICS SYSTEM PROCESSOR
SGUS011D -- APRIL 1991 -- REVISED SEPTEMBER 2004
87
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251--1443
multiprocessor-interface timing: GI,ALTCH, RAS,R0 and R1 (see Figure 51)
NO
’34020A-32
’34020A-40
UNIT
NO.
MIN
MAX
MIN
MAX
UNIT
105
ta(GIV-RQV)
Access time, GI valid after R0 and R1 valid
(see Note 12)
2tQ--40
2tQ--30
ns
105.1
tsu(GIV-CK1H)
Setup time, GI valid before LCLK1 no longer low
(see Note 12)
40
35
ns
106
th(CK1H-GIV)
Hold time, GI valid after LCLK1 no longer low
0
ns
107
td(CK2H-RQV)
Delay time, LCLK2 no longer low to R0 or R1 valid
tQ+15
tQ+13.5
ns
108
td(CK2H-RQNV)
Delay time, LCLK2 high to R0 or R1 no longer valid
tQ--15
tQ--13.5
ns
NOTE 12: These timings must be met to ensure that GI is recognized on this clock cycle.
For a SMJ34020A to gain control of the local bus during a given cycle, GI must be low at the start of Q1 (indicating
that the bus arbitration logic is granting the bus to this processor).
GI
R0--R1
LCLK2
LCLK1
106
105
Q4
Q1
Q2
Q3
Q4
Q1
Q2
Q3
Q4
Q1
Q2
Q3
Q4
Q1
Valid
108
107
105.1
See clock stretch, page 21.
Figure 51. Multiprocessor-Interface Timing: GI,ALTCH, RAS,R0 and R1
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