參數(shù)資料
型號： HC05PL4GRS
英文描述： 68HC05PL4A. 68HC05PL4B. 68HC705PL4B General Release Specification
中文描述： 68HC05PL4A。 68HC05PL4B。 68HC705PL4B一般版本規(guī)范
文件頁數(shù)： 26/98頁
文件大?。?/td> 1004K
代理商： HC05PL4GRS
GENERAL RELEASE SPECIFICATION
April 30, 1998
MOTOROLA
4-2
INTERRUPTS
MC68HC05PL4
REV 2.0
NOTE
If more than one interrupt request is pending, the CPU fetches the vector of the
higher priority interrupt first. A higher priority interrupt does not actually interrupt a
lower priority interrupt service routine unless the lower priority interrupt service
routine clears the I bit.
4.2
INTERRUPT PROCESSING
The CPU does the following actions to begin servicing an interrupt:
Stores the CPU registers on the stack in the order shown in
Figure 4-1
Sets the I bit in the condition code register to prevent further interrupts
Loads the program counter with the contents of the appropriate interrupt
vector locations as shown in
Table 4-1
The return from interrupt (RTI) instruction causes the CPU to recover its register
contents from the stack as shown in
Figure 4-1
. The sequence of events caused
by an interrupt is shown in the flow chart in
Figure 4-2
$0020
$0021
(Bottom of RAM)
$00BE
$00BF
$00C0
$00C1
$00C2
(Bottom of Stack)
Unstacking
Order
1
2
3
4
5
n
Condition Code Register
Accumulator
Index Register
Program Counter (High Byte)
Program Counter (Low Byte)
5
4
3
2
1
n+1
n+2
n+3
n+4
Stacking
Order
$00FD
$00FE
$00FF
Top of Stack (RAM)
Figure 4-1. Interrupt Stacking Order
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
相關(guān)PDF資料
PDF描述
HC05V7GRS 68HC05V7 General Release Specification
HC05 Bipolar Transistor; Transistor Polarity:Dual P Channel; Power Dissipation:20W; DC Current Gain Min (hfe):25; Collector Current:1A; DC Current Gain Max (hfe):200; Power (Ptot):20W
HC1-5502A-7 Subscriber Line Interface Circuit
HC4P-5502A-7 Subscriber Line Interface Circuit
HC1062A Low Voltage Telephone Speech Transmission Circuit / High/Low Level Mute
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HC05V7GRS 制造商:未知廠家 制造商全稱:未知廠家 功能描述:68HC05V7 General Release Specification
HC060WE1DS038B 制造商:TE Connectivity 功能描述:EC7174-000
HC060YW1DS038B 制造商:TE Connectivity 功能描述:EC7207-000
HC06B05000J0G 制造商:FCI 功能描述:OEM ITEM 505-5BNF-SPRING CLAMP SYSTEM
HC08 制造商:Texas Instruments 功能描述:
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報(bào)價(jià)

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*