參數(shù)資料
型號(hào): P90CE201
廠商: NXP Semiconductors N.V.
英文描述: 16-bit microcontroller
中文描述: 16位微控制器
文件頁數(shù): 11/77頁
文件大小: 235K
代理商: P90CE201
August 1993
11
Philips Semiconductors
Product specification
16-bit microcontroller
P90CE201
5.4.1
E
XCEPTION VECTORS
Exception vectors are memory locations from which the
CPU fetches the address of a routine that will handle that
exception. All exception vectors are 2 words long (see Fig.6)
except for the reset vector which is made up of 4 words,
containing the Program Counter (PC) and the
Supervisor Stack Pointer (SSP). All exception vectors are
contained in the supervisor data space.
A vector number is an 8-bit number that, when multiplied
by 4, gives the address of an exception vector. Vector
numbers are generated internally. The memory map for
the exception vectors is given in Table 2.
Fig.6 Exception vector format.
handbook, halfpage
NEW PROGRAM COUNTER (HIGH)
NEW PROGRAM COUNTER (LOW)
Word 1
MCD509
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