參數(shù)資料
型號: EC000UM
英文描述: EC000 Core User's Manual (SCM68000)
中文描述: EC000核心用戶手冊(SCM68000)
文件頁數(shù): 140/145頁
文件大小: 829K
代理商: EC000UM
Exception Processing
MOTOROLA
EC000 CORE PROCESSOR USER’S MANUAL
4-9
for AVECB to identify an autovectored interrupt acknowledge cycle. If both signals are
asserted, the operation of the state machine is unpredictable.
Figure 4-4. Autovector Operation Timing Diagram—Best Case
S0
S2
CLKI
S4
S6
S8
S10
S12
S14
S16
S18
FC2–FC0
A3–A1
SIZ1–SIZ0
A31–A4
A0
DTACKB
RWB
ERWB
RMCB
DOEB
AOEB
COEB
DATA OUT
DATA IN
TESTCLK
AVECB
ASB
LDSB
UDSB
DSB
TSCAE
Although both UDSB and LDSB are asserted, no data is read from the bus during the
autovector cycle. The vector number is generated internally.
NOTE:
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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