参数资料
型号: MC68334GCFC20
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 20 MHz, MICROCONTROLLER, PQFP132
封装: PLASTIC, QFP-132
文件页数: 37/76页
文件大小: 444K
代理商: MC68334GCFC20
MOTOROLA
MC68334
42
MC68334TS/D REV. 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 in 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 CPU32 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.
3.9 Factory Test Block
The test submodule supports scan-based testing of the various MCU modules. It is integrated into the
SIM 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.
SIMTR — System Integration Test Register
$YFFA02
SIMTRE — System Integration 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
相关PDF资料
PDF描述
MC68334MFC20 32-BIT, 20 MHz, MICROCONTROLLER, PQFP132
MC68334VFC20 32-BIT, 20 MHz, MICROCONTROLLER, PQFP132
MC68334AVFC20 32-BIT, 20 MHz, MICROCONTROLLER, PQFP132
MC68334VFC16 32-BIT, 16 MHz, MICROCONTROLLER, PQFP132
MC68336AMFT20 32-BIT, 20.97 MHz, MICROCONTROLLER, PQFP16
相关代理商/技术参数
参数描述
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