參數(shù)資料
型號(hào): IS80C31-12WI
廠商: INTEGRATED SILICON SOLUTION INC
元件分類: 微控制器/微處理器
英文描述: CMOS SINGLE CHIP 8-BIT MICROCONTROLLER
中文描述: 8-BIT, 12 MHz, MICROCONTROLLER, PDIP40
封裝: 0.600 INCH, PLASTIC, DIP-40
文件頁(yè)數(shù): 23/43頁(yè)
文件大?。?/td> 337K
代理商: IS80C31-12WI
IS80C51
IS80C31
Integrated Silicon Solution, Inc. — 1-800-379-4774
MC003-1D
11/19/98
23
ISSI
Figure 14. Serial Port Mode 2
WRITE
TO
SBUF
LOAD
SBUF
BIT
DETECTOR
INPUT SHIFT REG.
(9 BITS)
SAMPLE
MODE 2
(SMOD IS PCON. 7)
SBUF
ZERO DETECTOR
SHIFT
RXD
TXD
Q
S
D
CL
START
TX CLOCK
START
DATA
SEND
LOAD
SBUF
SHIFT
1FFH
TX CONTROL
TI
SERIAL
PORT
INTERRUPT
RI
RX CONTROL
SBUF
IS80C51/31 INTERNAL BUS
READ
SBUF
S1P1
D0
D1
D2
D3
D5
D6
D7
TB8
D4
SEND
DATA
SHIFT
SHIFT
TX
CLOCK
WRITE TO SBUF
TRANSMIT
RECEIVE
SHIFT
÷
16
÷
16
1-TO-0
TRANSITION
DETECTOR
IS80C51/31 INTERNAL BUS
PHASE 2 CLOCK
(1/2 f
OSC
)
÷
2
TB8
STOP BIT
TXD
BIT DETECTOR SAMPLE TIMES
TI
RI
STOP BIT GEN
STOP BIT GEN
RX
CLOCK
SMOD 0
SMOD 1
D0
D1
D2
D3
D5
D6
D7
D4
BIT
RXD
CRX
÷
16 RESET
RB8
SBIT
SBIT
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