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參數(shù)資料
| 型號(hào)： | MC68CK338 |
| 廠商： | Motorola, Inc. |
| 元件分類： | 32位微控制器 |
| 英文描述： | Highly Integrated, Low-Power, 32-Bit Microcontroller |
| 中文描述： | 高度集成，低功耗，32位微控制器 |
| 文件頁(yè)數(shù)： | 47/133頁(yè) |
| 文件大?。?/td> | 798K |
| 代理商： | MC68CK338 |
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MC68CK338
MC68CK338TS/D
MOTOROLA
47
A. The CPU finishes higher priority exception processing or reaches an instruction boundary.
B. The processor state is stacked. The S bit in the status register is set, establishing supervisor
access level, and bits T1 and T0 are cleared, disabling tracing.
C. The interrupt acknowledge cycle begins:
1.
FC[2:0] are driven to %111 (CPU space) encoding.
2.
The address bus is driven as follows: ADDR[23:20] = %1111; ADDR[19:16] = %1111,
which indicates that the cycle is an interrupt acknowledge CPU space cycle; ADDR[15:4]
= %111111111111; ADDR[3:1] = the priority of the interrupt request being acknowledged;
and ADDR0 = %1.
3.
The request level is latched from the address bus into the interrupt priority mask field in the
status or condition code register.
D. Modules that have requested interrupt service decode the priority value on ADDR[3:1]. If
request priority is the same as acknowledged priority, arbitration by IARB contention takes
place.
E. After arbitration, the interrupt acknowledge cycle is completed in one of the following ways:
1.
When there is no contention (IARB = %0000), the spurious interrupt monitor asserts BERR,
and the CPU generates the spurious interrupt vector number.
2.
The dominant interrupt source supplies a vector number and DSACK signals appropriate
to the access. The CPU acquires the vector number.
3.
The AVEC signal is asserted (the signal can be asserted by the dominant interrupt source
or the pin can be tied low), and the CPU generates an autovector number corresponding
to interrupt priority.
4.
The bus monitor asserts BERR and the CPU32L generates the spurious interrupt vector
number.
F.
The vector number is converted to a vector address.
G. The content of the vector address is loaded into the PC, and the processor transfers control to
the exception handler routine.
3.10 Factory Test Block
The test submodule supports scan-based testing of the various MCU modules. It is integrated into the
SIML to support production testing.
Test submodule registers are intended for Motorola use. Register names and addresses are provided
to indicate that these addresses are occupied.
SIMLTR —
System Integration Module Test Register
$YFFA02
SIMLTRE —
System Integration Module Test Register (E Clock)
$YFFA08
TSTMSRA —
Master Shift Register A
$YFFA30
TSTMSRB —
Master Shift Register B
$YFFA32
TSTSC —
Test Module Shift Count
$YFFA34
TSTRC —
Test Module Repetition Count
$YFFA36
CREG —
Test Module Control Register
$YFFA38
DREG —
Test Module Distributed Register
$YFFA3A
相關(guān)PDF資料 |
PDF描述 |
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| MC68EC060 | 32-Bit Microprocessors.(32位微處理器) |
| MC68EN360RC25V | QUad Integrated Communications Controller Users Manual |
| MC68EN360CFE25 | QUad Integrated Communications Controller Users Manual |
| MC68EN360FE25 | AC 4C 4#12 PIN PLUG 023 |
| MC68EN360FE25V | QUad Integrated Communications Controller Users Manual |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68CK338CPV14 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC68CK338CPV14B1 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:32-Bit Modular Microcontroller |
| MC68CM16Z1 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:M68HC16Z Series |
| MC68CM16Z1CFC16 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:M68HC16Z Series |
| MC68CM16Z1CPV16 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:M68HC16Z Series |
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