參數(shù)資料
型號(hào): SX20AC75
廠商: Electronic Theatre Controls, Inc.
英文描述: Configurable Communications Controllers with EE/Flash Program Memory, In-System Programming Capability and On-Chip Debug
中文描述: 配置通信控制器與電子工程/閃存程序存儲(chǔ)器,在系統(tǒng)編程能力和片上調(diào)試
文件頁(yè)數(shù): 33/52頁(yè)
文件大?。?/td> 688K
代理商: SX20AC75
2000 Scenix Semiconductor, Inc. All rights reserved.
- 33 -
www.scenix.com
SX18AC/SX20AC/SX28AC/SX18AC75/SX20AC75/SX28AC75
15.12
15.12.1 Push Operation
When a subroutine is called, the return address is
pushed onto the subroutine stack. Specifically, each
address in the stack is moved to the next lower level in
order to make room for the new address to be stored.
Stack 1 receives the contents of the program counter.
Stack 8 is overwritten with what was in Stack 7. The con-
tents of stack 8 are lost.
Subroutine Operation
15.12.2 Pop Operation
When a return instruction is executed the subroutine
stack is popped. Specifically, the contents of Stack 1 are
copied into the program counter and the contents of each
stack level are moved to the next higher level. For exam-
ple, Stack 1 receives the contents of Stack 2, etc., until
Stack 7 is overwritten with the contents of Stack 8. Stack
8 is left unchanged, so the contents of Stack 8 are dupli-
cated in Stack 7.
PC<10:0>
STACK 1
STACK 2
STACK 3
STACK 4
STACK 5
STACK 6
STACK 7
STACK 8
PC<10:0>
STACK 1
STACK 2
STACK 3
STACK 4
STACK 5
STACK 6
STACK 7
STACK 8
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SX20AC75-I/DP 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Configurable Communications Controllers with EE/Flash Program Memory, In-System Programming Capability and On-Chip Debug
SX20AC75-I/PQ 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Configurable Communications Controllers with EE/Flash Program Memory, In-System Programming Capability and On-Chip Debug
SX20AC75-I/SO 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Configurable Communications Controllers with EE/Flash Program Memory, In-System Programming Capability and On-Chip Debug
SX20AC75-I/SS 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Configurable Communications Controllers with EE/Flash Program Memory, In-System Programming Capability and On-Chip Debug
SX20AC75-I/TQ 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Configurable Communications Controllers with EE/Flash Program Memory, In-System Programming Capability and On-Chip Debug