參數(shù)資料
型號(hào)： P87C554SFBD
廠商： NXP SEMICONDUCTORS
元件分類(lèi)： 微控制器/微處理器
英文描述： 80C51 8-bit microcontroller . 6 clock operation 16K/512 OTP/ROM/ROMless, 7 channel 10 bit A/D, I2C, PWM, capture/compare, high I/O, 64L LQFP
中文描述： 8-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PQFP64
封裝： 10 X 10 X 1.40 MM, PLASTIC, LQFP-64
文件頁(yè)數(shù)： 45/76頁(yè)
文件大?。?/td> 400K
代理商： P87C554SFBD
Philips Semiconductors
Preliminary specification
80C554/83C554/87C554
80C51 8-bit microcontroller – 6 clock operation
16K/512 OTP/ROM/ROMless, 7 channel 10 bit A/D, I
2
C, PWM,
capture/compare, high I/O, 64L LQFP
2000 Nov 10
45
Table 7.
Master Receiver Mode
STATUS
CODE
(S1STA)
STATUS OF THE I
2
C
BUS AND
SIO1 HARDWARE
APPLICATION SOFTWARE RESPONSE
TO/FROM S1DAT
TO S1CON
NEXT ACTION TAKEN BY SIO1 HARDWARE
STA
STO
SI
AA
08H
A START condition has
been transmitted
Load SLA+R
X
0
0
X
SLA+R will be transmitted;
ACK bit will be received
10H
A repeated START
condition h
transmitted
b
Load SLA+R or
Load SLA+W
X
X
0
0
0
0
X
X
As above
SLA+W will be transmitted;
SIO1 will be switched to MST/TRX mode
I
2
C bus will be released;
SIO1 will enter a slave mode
A START condition will be transmitted when the
bus becomes free
38H
Arbitration lost in
NOT ACK bit
No S1DAT action or
0
0
0
X
No S1DAT action
1
0
0
X
40H
SLA+R has been
transmitted; ACK has
been received
No S1DAT action or
0
0
0
0
Data byte will be received;
NOT ACK bit will be returned
Data byte will be received;
ACK bit will be returned
no S1DAT action
0
0
0
1
48H
SLA+R has been
itt d NOT ACK
transmitted; NOT ACK
has been received
No S1DAT action or
no S1DAT action or
1
0
0
1
0
0
X
X
Repeated START condition will be transmitted
STOP condition will be transmitted;
STO flag will be reset
STOP condition followed by a
START condition will be transmitted;
STO flag will be reset
no S1DAT action
1
1
0
X
50H
Data byte has been
received; ACK has been
returned
Read data byte or
0
0
0
0
Data byte will be received;
NOT ACK bit will be returned
Data byte will be received;
ACK bit will be returned
read data byte
0
0
0
1
58H
Data byte has been
d NOT ACK h
received; NOT ACK has
been returned
Read data byte or
read data byte or
1
0
0
1
0
0
X
X
Repeated START condition will be transmitted
STOP condition will be transmitted;
STO flag will be reset
STOP condition followed by a
START condition will be transmitted;
STO flag will be reset
read data byte
1
1
0
X
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