參數(shù)資料
型號: P87LPC769HD512
廠商: NXP Semiconductors N.V.
元件分類: 8位微控制器
英文描述: IC-SM-8-BIT MCU
中文描述: 集成電路釤8位微控制器
文件頁數(shù): 45/61頁
文件大小: 306K
代理商: P87LPC769HD512
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
2001 Jan 11
42
SU01179
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
TRANSMIT
RxD
P1.1 ALT
INPUT
FUNCTION
80C51 INTERNAL BUS
DATA
TB8
÷
16
÷
16
÷
2
TIMER 1
OVERFLOW
SMOD1 = 0
SMOD1
= 1
1-TO-0
TRANSITION
DETECTOR
BIT
DETECTOR
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
START
BIT
STOP BIT
RxD
D0
D1
D5
D2
D6
D3
D4
D7
÷
16 RESET
Figure 33. Serial Port Mode 1
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