參數(shù)資料
型號(hào)： P80C52X2BN
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 33 MHz, MICROCONTROLLER, PDIP40
封裝： 0.600 INCH, PLASTIC, MO-015, SOT-129-1, DIP-40
文件頁(yè)數(shù)： 26/62頁(yè)
文件大?。?/td> 404K
代理商： P80C52X2BN
Philips Semiconductors
Product data
P80C3xX2; P80C5xX2;
P87C5xX2
80C51 8-bit microcontroller family
4K/8K/16K/32K ROM/OTP, low voltage (2.7 to 5.5 V),
low power, high speed (30/33 MHz)
2002 Jan 24
32
SMOD1
SMOD0
–
POF
GF1
GF0
PD
IDL
PCON
(87H)
SM0 / FE
SM1
SM2
REN
TB8
RB8
TI
RI
SCON
(98H)
D0
D1
D2
D3
D4
D5
D6
D7
D8
STOP
BIT
DATA BYTE
ONLY IN
MODE 2, 3
START
BIT
SET FE BIT IF STOP BIT IS 0 (FRAMING ERROR)
SM0 TO UART MODE CONTROL
0 : SCON.7 = SM0
1 : SCON.7 = FE
SU01191
Figure 19. UART Framing Error Detection
SM0
SM1
SM2
REN
TB8
RB8
TI
RI
SCON
(98H)
D0
D1
D2
D3
D4
D5
D6
D7
D8
1
0
COMPARATOR
11
X
RECEIVED ADDRESS D0 TO D7
PROGRAMMED ADDRESS
IN UART MODE 2 OR MODE 3 AND SM2 = 1:
INTERRUPT IF REN=1, RB8=1 AND “RECEIVED ADDRESS” = “PROGRAMMED ADDRESS”
– WHEN OWN ADDRESS RECEIVED, CLEAR SM2 TO RECEIVE DATA BYTES
– WHEN ALL DATA BYTES HAVE BEEN RECEIVED: SET SM2 TO WAIT FOR NEXT ADDRESS.
SU00045
Figure 20. UART Multiprocessor Communication, Automatic Address Recognition
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