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一帧为10位,1位起始位、8位数据位(先低后高)、1位停止位。波特率由T1或T2的溢出率确定。在发送或接收到一帧数据后,硬件置TI=1或RI=1,向CPU申请中断;但必须用软件清除中断标志,否则,下一帧数据无法发送或接收。发送:CPU执行一条写SBUF指令,启动了串行口发送,将1写入输出移位寄存器的第9位。发送起始位后,在每个移位脉冲的作用下,输出移位寄存器右移一位,左边移入0,在数据位移到输出位时,原写入的第9位1的左边全是0,检测电路检测到这一条件后,使控制电路作Zui后一次移位,/SEND和DATA无效,发送停止位,一帧结束,置TI=1。






PZ-G51N G52N G41N G42N G61N G62N
PR-MB30N3
PI90SD1636CFGE
MRMS201A-001
LPC2365FBD100
HI3798MRBCV201YD000H
HY27UU08AG5A-TPCB
Hi3518ERNCV300
EX-11SA
CS82C84A
XC6209B352DRX
FS-V31
VIC3211-33DJ
XC6201P412DR-G
CD74HC368E
MSP430F2132TPW
DG419LDQ-T1-E3
1021ARQ
SK-200
XC74UL04AANR


MPL3115A2R1
XM504-F144F512AC
EX-V64
B58622M3273B507
MB8G5BV
TLE4999I3
SCA1020-D11-6+S00415
88F6660-A0-BRP2C080
EX-V05
THC63LVDF84B
S9S12VR64F2VLF
L032ZE-7TNIACU
FS-M2 M1 M1P M2P
KH3216-A55
FS-N18N FSN18N FS-N18N
S6133DAUMA1
EYG-R0507ZRML
XC9260B2BCPR-G
PZ-G51N
PI74STX1GU04TEX
SR-2000W
BU4846FVE-TR
LCMXO2-1200UHC-4FTG256C
SY58103FAC
THC63LVDM63A-G
BL-651HA BL-651H
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CP0603A0836AWTR
88E1111-B2-BAB1C000
HD74HC08P
PI7C8154BNAE
74LVC373AD-Q100J
CX-424-P-J
PI5V330SQE
KV-H20S
BQ25619RTWR
TFDU4301-TR1
BA00CC0WT
BU4815G-TR
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TPS79301DBVR
MM74C922N
TDA2822D
XC6129N32CNR-G
2246667-1
LCMXO2-1200HC-4MG132C
BD4846FVE-TR
CV-X250FCV-X290F
XC9142B46CER-G
K5L3316CAM-D770
TRS3-110MCR00
MDMA502P1H
ANR5242
ISP1761ET
IRUH330125B
THC63LVD823
UC3843BN
SR-750
XT4052K421MR
CIGT252010EH1R0MNE
SR-1000 SR-1000W
SL-C52H SL-C52H-T+SL-C52H-R
LCMX02-4000HC-4BG256I
THC63LVDF84A
XG-7701
CP0603A0942BWTR
M-TRS5-40B
HCF4052M013TR
SR-1000W
SR-710
PZ-M1
GAL20V8B-25LP
THC63LVDF84A
XMC1201-T028F0032AB
EKMB1391112K
PI5USB30216AXUAEX
XB5358A
HAT1500-S/SP200
81582A104J425E
SGM48752YTQ16G/TR
MDMA402P1G
OV04689-H67A-2A
TLE7278-2EV50
BU45L234G-TL
CV-X270F
ANPD060-12
85-015A-8R
PI49FCT3805H
VIPER12A
MS-EX10-13
DP16H2424A15F
TPS2065DBVR
SCC2130-D08-05
XD9261B1CCER-Q
MX9G60BU
EPM240T100C5N
K9F4G08UOA-PIBO
PI7C8152AMAE
OVM7690-RYAA
LCMXO3LF-2100C-5BG256C
HI3535RBCV100
PI3C3306UX
HY5W5A6DLF-HF
ISPLSI1024-60LJ
PS323CSAEX
THCV215
MDD26-14N1B
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PNZ155
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LV-N12CNN12CPN12NN12P
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EH-303A
PI3HDMI412FTZHE