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參數(shù)資料
| 型號(hào)： | UPD784216AY |
| 廠商： | NEC Corp. |
| 英文描述： | 16-BIT SINGLE-CHIP MICROCONTROLLERS |
| 中文描述： | 16位單晶片微控制器 |
| 文件頁(yè)數(shù)： | 55/100頁(yè) |
| 文件大?。?/td> | 561K |
| 代理商： | UPD784216AY |
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Data Sheet U14121EJ2V0DS00
55
μ
PD784214A, 784215A, 784216A, 784217A, 784218A, 784214AY, 784215AY, 784216AY, 784217AY, 784218AY
8.3 Context Switching
When an interrupt request is generated or when the BRKCS instruction is executed, a predetermined register
bank is selected by hardware. Context switching is a function that branches execution to a vector address stored in
advance in the register bank, while at the same time stacking the current contents of the program counter (PC) and
program status word (PSW) to the register bank.
The branch address is in a range of 0 to FFFFH.
Figure 8-1. Context Switching Operation When Interrupt Request Is Generated
Register bank n (n = 0 to 7)
0000B
<7> Transfer
PC19-16
PC15-0
<6> Exchange
<5> Save
<2> Save
Temporary register
<1> Save
PSW
V
U
T
W
A
B
R5
R7
D
H
X
C
R4
R6
E
L
VP
UP
<3> Switching of register bank
(RBS0 to RBS2
←
n)
<4> RSS
←
0
IE
←
0
Register bank
(0 to 7)
(Bits 8 to 11 of
temporary register)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UPD784216AYGF | 16-BIT SINGLE-CHIP MICROCONTROLLERS |
| UPD784217A | 16-BIT SINGLE-CHIP MICROCONTROLLERS |
| UPD784214AYGC | Circular Connector; No. of Contacts:85; Series:; Body Material:Aluminum Alloy; Connecting Termination:Solder; Connector Shell Size:40; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:40-56 RoHS Compliant: No |
| UPD784215AYGC | Circular Connector; No. of Contacts:85; Series:; Body Material:Aluminum Alloy; Connecting Termination:Solder; Connector Shell Size:40; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:40-56 RoHS Compliant: No |
| UPD784216AYGC | 16-BIT SINGLE-CHIP MICROCONTROLLERS |
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| UPD784218AGC-382-8EU-NRE-A | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD784218AGC-382-8EU-SES-A | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD784935AGF-113-3BA | 制造商:NEC Electronics Corporation 功能描述: |
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| UPD789104AMC(A)-968-5A4-E2 | 制造商:Renesas Electronics Corporation 功能描述: |
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