參數(shù)資料
型號: SMJ34020AHT
廠商: Texas Instruments, Inc.
英文描述: GRAPHICS SYSTEM PROCESSOR
中文描述: 圖形系統(tǒng)處理器
文件頁數(shù): 75/92頁
文件大?。?/td> 1458K
代理商: SMJ34020AHT
SMJ34020A
GRAPHICS SYSTEMPROCESSOR
SGUS011B – APRIL 1991 – REVISED AUGUST 1995
75
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
host interface timing responses (write cycle) (see Note 4 and Figure 39)
NO.
PARAMETER
’34020-32
’34020A-32
’34020A-40
UNIT
MIN
28
MAX
MIN
25
MAX
27
tw(WRH)
tw(WRL)
Pulse duration, HWRITE high
ns
31
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)
td(CK1 -OEH)
td(RYH-OEH)
Delay time from LCLK2
to HOE low
Delay time from LCLK1
to HOE high
Delay time from HRDY
to HOE high
tQ+15+ s
tQ+15
2tQ+15
tQ+13.5+ s
tQ+13.5
2tQ+13.5
ns
49
ns
51
ns
Setup time to ensure recognition of input on this clock edge.
NOTE 4: 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 20.
Figure 39. Host-Interface-Cycle Timing Responses (Write-Cycle)
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