P8XCL580HFT View Datasheet(PDF) - Philips Electronics
Part Name
Description
MFG CO.
'P8XCL580HFT' PDF : 80 Pages View PDF
Philips Semiconductors
Low voltage 8-bit microcontrollers with
UART, I2C-bus and ADC
Product specification
P80CL580; P83CL580
Table 18 Selection of the serial clock frequency SCL in a Master mode of operation
CR2
0
0
0
0
1
1
1
1
CR1
0
0
1
1
0
0
1
1
CR0
0
1
0
1
0
1
0
1
fosc DIVISOR
256
224
192
160
960
120
60
not allowed
BIT RATE(kHz) AT fosc
3.58 MHz
6 MHz
12 MHz
14.0
23.4
46.9
16.0
26.8
53.6
18.6
31.3
62.5
22.4
37.5
75.0
3.73
6.25
12.5
29.8
50.0
100.0
59.7
100.0
−
−
−
−
15.2 Serial Status Register (S1STA)
S1STA is a read-only register.The contents of this register may be used as a vector to a service routine. This optimizes
the response time of the software and consequently that of the I2C-bus. The status codes for all possible modes of the
I2C-bus interface are given in Tables 21 to 25.
Table 19 Serial Status Register (address D9H)
7
6
5
4
3
2
1
0
SC4
SC3
SC2
SC1
SC0
0
0
0
Table 20 Description of S1STA bits
BIT
3 to 7
0 to 2
SYMBOL
DESCRIPTION
SC4 to SC0 5-bit status code.
−
These three bits are always zero.
Table 21 MST/TRX mode
S1STA VALUE
DESCRIPTION
08H
A START condition has been transmitted.
10H
A repeated START condition has been transmitted.
18H
SLA and W have been transmitted, ACK has been received.
20H
SLA and W have been transmitted, ACK received.
28H
DATA of S1DAT has been transmitted, ACK received.
30H
DATA of S1DAT has been transmitted, ACK received.
38H
Arbitration lost in SLA, R/W or DATA.
1997 Mar 14
30
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