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): 78/82頁
文件大小: 1359K
代理商: TMS34020
TMS34020, TMS34020A
GRAPHICS PROCESSORS
SPVS004D – MARCH 1990 – REVISED NOVEMBER 1993
78
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
PARAMETER MEASUREMENT INFORMATION
interrupt timing: LINT1 and LINT2
NO.
PARAMETER
’34020-32
’34020A-32
’34020A-40
UNIT
MIN
MAX
MIN
MAX
134
tsu(LINTL-CK2
)
tw(LINTL)
Setup time, LINT1 or LINT2 low before LCLK2
tQ+45
8tQ
tQ+40
8tQ
ns
135
Pulse duration of LINT1 or LINT2 low
ns
Although LINT1 and LINT2 can be asynchronous to the TMS34020, this setup insures recognition of the interrupt on this clock edge.
This pulse duration minimum insures that the interrupt is recognized by internal logic; however, the level must be maintained until it has been
acknowledged by the interrupt service routine.
LINT1
LINT2
LCLK2
LCLK1
135
134
Figure 49. Interrupt Timing: LINT1 and LINT2
host interrupt timing: HINT
NO.
PARAMETER
’34020-32
’34020A-32
’34020A-40
UNIT
MIN
MAX
MIN
MAX
136
td(CK1
-HINTV)
Delay time, LCLK1
to HINT valid
30
25
ns
HINT
LCLK2
LCLK1
136
136
Figure 50. Host Interrupt Timing: HINT
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