參數(shù)資料
型號: 87LPC769
廠商: NXP Semiconductors N.V.
英文描述: Low power, low price, low pin count(20 pin) microcontroller with 4 kB OTP and 8-bit A/D,and DAC(帶4 kB OTP、8位A/D和D/A轉(zhuǎn)換的低功耗,低價格,少引腳(20引腳)的微控制器)
中文描述: 低功耗,低價格,低引腳數(shù)(20針)與4 KB的檢察官辦公室和8位A / D,和DAC(帶4 KB的檢察官辦公室,8位微控制器的A / D和的D / A轉(zhuǎn)換的低功耗,低價格,少引腳(20引腳)的微控制器)
文件頁數(shù): 47/61頁
文件大?。?/td> 275K
代理商: 87LPC769
Philips Semiconductors
Preliminary specification
87LPC769
Low power, low price, low pin count (20 pin)
microcontroller with 4 kB OTP 8-bit A/D, and DAC
2000 Apr 26
44
START
BIT
SU01180
80C51 INTERNAL BUS
WRITE TO SBUF
SBUF
ZERO DETECTOR
TxD
P1.0 ALT OUTPUT
FUNCTION
TX CONTROL
S
TX CLOCK
START
Q
CL
D
SERIAL PORT INTERRUPT
SHIFT
SEND
LOAD
SBUF
TI
INPUT SHIFT REGISTER
START
RI
LOAD SBUF
SHIFT
RX
CLOCK
1FFH
RX CONTROL
SBUF
READ
SBUF
RxD
P1.1 ALT
INPUT
FUNCTION
80C51 INTERNAL BUS
DATA
TB8
÷
16
÷
16
÷
2
PHASE 2 CLOCK
(1/2 f
OSC
)
1-TO-0
TRANSITION
DETECTOR
BIT DETECTOR
STOP BIT GEN.
SMOD1 = 0
SMOD1
= 1
TRANSMIT
START
BIT
STOP BIT
TX CLOCK
WRITE TO SBUF
SEND
DATA
SHIFT
TxD
TI
D0
D1
D5
D2
D6
D3
D4
D7
RECEIVE
RX CLOCK
SHIFT
RI
BIT DETECTOR SAMPLE TIMES
STOP BIT
RxD
D0
D1
D5
D2
D6
D3
D4
D7
÷
16 RESET
TB8
STOP BIT GEN.
RB8
Figure 34. Serial Port Mode 2
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