參數(shù)資料
型號(hào)： KS57C2504
廠商： SAMSUNG SEMICONDUCTOR CO. LTD.
元件分類： 4位微控制器
英文描述： 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
中文描述： 4位單片機(jī)的小型通用紅外遙控器
文件頁(yè)數(shù)： 72/94頁(yè)
文件大小： 763K
代理商： KS57C2504
PRODUCT SPECIFICATION
S3C7254
4–72
PROGRAMMING TIP — Setting Transmit/Receive Modes for Serial I/O (Continued)
3.
Transmit and receive an internal clock frequency of 4.09 kHz (at 4.19 MHz) in LSB-first mode:
BITR
LD
LD
LD
LD
LD
LD
EI
BITS
.
.
PUSH
PUSH
BITR
LD
EMB
EA,#03H
PMG1,EA
EA,TDATA
SBUF,EA
EA,#8FH
SMOD,EA
;
;
P0.0 /
SCK
and P0.1 / SO
←
Output, P0.2/SI
←
Input
TDATA address = BANK0 (20H–7FH)
;
SIO start
IES
INTS
SB
EA
EMB
EA,TDATA
;
;
Store SMB, SRB
Store EA
;
;
;
;
;
EA
←
Transmit data,
TDATA address = BANK0 (20H–7FH)
Transmit data
Receive data
RDATA address = BANK0 (20H–7FH)
SIO start
XCH
LD
BITS
POP
POP
IRET
EA,SBUF
RDATA,EA
SMOD.3
EA
SB
EXTERNAL
DEVICE
SCK
/
P0.0
SO / P0.1
SI / P0.2
S3C7254
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