參數(shù)資料
型號(hào): MM912G634CM1AER2
廠商: Freescale Semiconductor
文件頁(yè)數(shù): 136/349頁(yè)
文件大?。?/td> 0K
描述: IC 48KS12 LIN2XLS/HS ISENSE
標(biāo)準(zhǔn)包裝: 2,000
應(yīng)用: 自動(dòng)
核心處理器: HCS12
程序存儲(chǔ)器類型: 閃存(48 kB)
控制器系列: HCS12
RAM 容量: 2K x 8
接口: LIN
電源電壓: 5.5 V ~ 27 V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 48-LQFP
包裝: 帶卷 (TR)
供應(yīng)商設(shè)備封裝: 48-LQFP(7x7)
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MM912_634 Advance Information, Rev. 10.0
Freescale Semiconductor
220
It is possible to set both TRIG and ARM simultaneously to generate an immediate trigger, independent of the current state of
ARM.
5.32.4.3.4
Channel Priorities
In case of simultaneous matches the priority is resolved according to Table 324. The lower priority is suppressed. It is thus
possible to miss a lower priority match if it occurs simultaneously with a higher priority. The priorities described in Table 324
dictate that in the case of simultaneous matches, the match pointing to final state has highest priority followed by the lower
channel number (0,1,2).
5.32.4.4
State Sequence Control
Figure 64. State Sequencer Diagram
The state sequencer allows a defined sequence of events to provide a trigger point for tracing of data in the trace buffer. Once
the DBG module has been armed by setting the ARM bit in the DBGC1 register, then state1 of the state sequencer is entered.
Further transitions between the states are then controlled by the state control registers and channel matches. From Final State
the only permitted transition is back to the disarmed state0. Transition between any of the states 1 to 3 is not restricted. Each
transition updates the SSF[2:0] flags in DBGSR accordingly to indicate the current state.
Alternatively writing to the TRIG bit in DBGSC1, provides an immediate trigger independent of comparator matches.
Independent of the state sequencer, each comparator channel can be individually configured to generate an immediate
breakpoint when a match occurs through the use of the BRK bits in the DBGxCTL registers. Thus it is possible to generate an
immediate breakpoint on selected channels, whilst a state sequencer transition can be initiated by a match on other channels. If
a debug session is ended by a match on a channel the state sequencer transitions through Final State for a clock cycle to state0.
This is independent of tracing and breakpoint activity, thus with tracing and breakpoints disabled, the state sequencer enters
state0 and the debug module is disarmed.
5.32.4.4.1
Final State
On entering Final State a trigger may be issued to the trace buffer according to the trace alignment control as defined by the
TALIGN bit (see Section 5.32.3.2.3, “Debug Trace Control Register (DBGTCR)"). If the TSOURCE bit in DBGTCR is clear then
the trace buffer is disabled and the transition to Final State can only generate a breakpoint request. In this case or upon
completion of a tracing session when tracing is enabled, the ARM bit in the DBGC1 register is cleared, returning the module to
Table 324. Channel Priorities
Priority
Source
Action
Highest
TRIG
Enter Final State
Channel pointing to Final State
Transition to next state as defined by state control registers
Match0 (force or tag hit)
Transition to next state as defined by state control registers
Match1 (force or tag hit)
Transition to next state as defined by state control registers
Lowest
Match2 (force or tag hit)
Transition to next state as defined by state control registers
State1
Final State
State3
ARM = 1
Session Complete
(Disarm)
State2
State 0
(Disarmed)
ARM = 0
相關(guān)PDF資料
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345-026-540-802 CARDEDGE 26POS DUAL .100 GREEN
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MM912G634CM1AE IC 48KS12 LIN2XLS/HS ISENSE
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