參數(shù)資料
型號: UPD64A
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION
中文描述: 4位單片機(jī)的紅外遙控傳輸
文件頁數(shù): 43/64頁
文件大?。?/td> 399K
代理商: UPD64A
43
μ
PD64A, 65
Data Sheet U14380EJ2V0DS00
9.8 Subroutine Instructions
The program memory consists of pages in steps of 1K (000H to 3FFH). However, as the assembler automatically
performs page optimization, it is unnecessary to designate pages. The pages allowed for each product are as
follows.
μ
PD64A (ROM: 1K steps)
μ
PD65 (ROM: 2K steps)
μ
PD6P5 (PROM: 2K steps) : pages 0, 1
: page 0
: pages 0, 1
CALL addr
<1> Instruction code
:
0 0 1 1 0 1 0 0 1 0
page 0
0 1 0 0 0 1 0 0 0 1
; page 1
0 1 0 0 1 1 0 0 0 1
a
9
a
7
a
6
a
5
a
4
a
8
a
3
a
2
a
1
a
0
: 2
: SP
SP + 1
ASR
PC
PC
addr
<2> Cycle count
<3> Function
Increments (+1) the stack pointer value and saves the program counter value in the address stack
register. Then, enters the address specified with the operand addr (a
9
to a
0
) into the program counter.
If a carry is generated when the stack pointer value is incremented (+1), an internal reset takes effect.
RET
<1> Instruction code
<2> Cycle count
<3> Function
:
0 1 0 0 0 1 0 0 1 0
: 1
: PC
ASR
SP
SP – 1
Restores the value saved in the address stack register to the program counter. Then, decrements
(–1) the stack pointer.
If a borrow is generated when the stack pointer value is decremented (–1), an internal reset takes effect.
相關(guān)PDF資料
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UPD65466 EA-9HD Family Pamphlet | Pamphlet[09/2002]
UPD65468 CMOS-9HD Family.EA-9HD Family Block Library Ver.6.0 | Block Library[12/2000]
UPD65469 EA-9HD Family Pamphlet | Pamphlet[09/2002]
UPD65470 CMOS-9HD Family.EA-9HD Family Block Library Ver.6.0 | Block Library[12/2000]
UPD65545 CMOS Gate Array.Embedded Array Ver.2.0 for Package | Design Manual[05/2003]
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