參數(shù)資料
型號(hào): SM34020AHTM32
廠商: TEXAS INSTRUMENTS INC
元件分類: 圖形處理器
英文描述: GRAPHICS PROCESSOR, CQFP132
封裝: CERAMIC, QFP-132
文件頁數(shù): 76/98頁
文件大?。?/td> 1546K
代理商: SM34020AHTM32
SMJ34020A
GRAPHICS SYSTEM PROCESSOR
SGUS011D -- APRIL 1991 -- REVISED SEPTEMBER 2004
78
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251--1443
host interface timing responses (write cycle) (see Note 5 and Figure 46)
NO
PARAMETER
34020A-32
34020A-40
UNIT
NO.
PARAMETER
MIN
MAX
MIN
MAX
UNIT
27
tw(WRH)
Pulse duration, HWRITE high
28
25
ns
31
tw(WRL)
Pulse duration, HWRITE low
18
15
ns
34
tsu(WRH-CK2L)
Setup time, HWRITE high or HCS high to LCLK2 no
longer high
30
25
ns
39
td(CK1L-RYH)
Delay time from LCLK1↑ to HRDY high
tQ+20
tQ+18
ns
46
td(WRL-RYH)
Delay time from later of HCS or HWRITE low to HRDY
high (TMS34020 ready)
25
20
ns
47
td(WRH-RYL)
Delay time from earlier of HCS or HWRITE high to
HRDY low (end of write)
25
20
ns
48
td(CK2L-OEL)
Delay time from LCLK2↓ to HOE low
tQ+15+ s
tQ+13.5+ s
ns
49
td(CK1H-OEH)
Delay time from LCLK1↓ to HOE high
tQ+15
tQ+13.5
ns
51
td(RYH-OEH)
Delay time from HRDY↑ to HOE high
2tQ+15
2tQ+13.5
ns
Setup time to ensure recognition of input on this clock edge.
NOTE 5: s =tQ if using the clock stretch;
s = 0 otherwise
49
39
48
46
34
HOE
HRDY
HCS
HWRITE
LCLK2
LCLK1
Q4
Q3
Q2
Q1
Q4
Q3
Q2
Q1
Q4
Q3
Q2
Q1
Q4
Q3
Q2
Q1
Q4
34
51
47
27
31
47
See clock stretch, page 21.
Figure 46. Host-Interface-Cycle Timing Responses (Write-Cycle)
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