參數(shù)資料
型號: TMS34020
廠商: Texas Instruments, Inc.
英文描述: GRAPHICS PROCESSORS
中文描述: 圖形處理器
文件頁數(shù): 64/82頁
文件大小: 1359K
代理商: TMS34020
TMS34020, TMS34020A
GRAPHICS PROCESSORS
SPVS004D – MARCH 1990 – REVISED NOVEMBER 1993
64
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
PARAMETER MEASUREMENT INFORMATION
host interface timing responses (write cycle) (see Figure 39)
NO.
PARAMETER
’34020-32
’34020A-32
’34020A-40
UNIT
MIN
MAX
MIN
MAX
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(CK2
-OEL)
td(CK1
-OEH)
td(CK1
-RYH)
th(CEH-OEL)
td(RY
-OEH)
Delay time from LCLK2
to HOE low
Delay time from LCLK1
to HOE high
Delay time from LCLK1
to HRDY high
tQ+15+ s
tQ+15
tQ+20
tQ+13.5+ s
tQ+13.5
tQ+18
ns
49
ns
39
ns
b
Hold time, CAS valid high after HOE valid low
tQ – 10
tQ – 7
51
Delay time from HRDY
to HOE high
2tQ+15
2tQ+13.5
ns
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
CAS
b
*See clock stretch, page 21.
Figure 39. Host Interface Timing Responses (Write Cycle)
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