參數資料
型號: μPD75F4246(A)
廠商: NEC Corp.
元件分類: 8位微控制器
英文描述: 8 Bit Single Chip Microcontrollers
中文描述: 8位單片機微控制器
文件頁數: 90/143頁
文件大?。?/td> 549K
代理商: ΜPD75F4246(A)
78
CHAPTER 4 SAMPLE PROGRAMS
;
;
700 CLK Wait
Wait for
μ
PD75F4264’s processing time
;Receive ACK
;
;
Receive one-byte data
Any errors
;
ACK for receive data
;
Target return error.
;
;
750 CLK Wait
Wait for
μ
PD75F4264’s processing time
;
C
Receive size
;Receive data
;
Receive one-byte data
;
Any errors
;
Receive C bytes
;
;
700 CLK Wait
Wait for
μ
PD75F4264’s processing time
;Receive ACK
;
Receive one-byte data
;
Any errors
;
ACK for receive data
;
Target return error.
;
;
700 CLK Wait
Wait for
μ
PD75F4264’s processing time
;Was last word read
;Normal end of read operation
;
TDE
Last address for storing read data
;
;Read last word next time
;(Remaining read data – 1 < 16)
TDE
Remaining read data – 1
LRED410:
MOVW
CALL
AX,#700
STMWT
;***** Receive ACK *****
LRED500:
CALL
CMP
BE
BR
LRED510:
CMP
BE
MOV
BR
LRED520:
MOVW
CALL
SCMRD
RFERR,#0
$LRED510
LRED900
RFRD,#3CH
$LRED520
RFERR,#05H
LRED900
AX,#750
STMWT
MOVW
BC,RFBUF
;***** Receive data *****
LRED600:
CALL
CMP
BE
BR
LRED610:
MOV
MOV
DBNZ
SCMRD
RFERR,#0
$LRED610
LRED900
A,RFRD
[WHL+],A
C,$LRED600
MOVW
CALL
AX,#700
STMWT
;***** Receive ACK *****
CALL
CMP
BE
BR
LRED700:
CMP
BE
MOV
BR
LRED710:
MOVW
CALL
SCMRD
RFERR,#0
$LRED700
LRED900
RFRD,#3CH
$LRED710
RFERR,#05H
LRED900
AC,#700
STMWT
;***** Next read judgment *****
CMP
BNE
RET
LRED800:
MOVG
ADDG
RFLAST,#1
$LRED800
TDE,RUEADR
TDE,#RUSER
SUBG
CMPW
TDE,WHL
DE,#16
BNC
$LRED810
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