P8XC557E4 NXP Semiconductors, P8XC557E4 Datasheet - Page 35
![The P80C557E4/P83C557E4/P89C557E4 (hereafter generically referred to as P8xC557E4) single-chip 8-bit microcontroller is manufactured in an advanced CMOS process and is a derivative of the 80C51 microcontroller family](/photos/41/53/415310/sot318-2_3d_sml.gif)
P8XC557E4
Manufacturer Part Number
P8XC557E4
Description
The P80C557E4/P83C557E4/P89C557E4 (hereafter generically referred to as P8xC557E4) single-chip 8-bit microcontroller is manufactured in an advanced CMOS process and is a derivative of the 80C51 microcontroller family
Manufacturer
NXP Semiconductors
Datasheet
1.P8XC557E4.pdf
(72 pages)
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Philips Semiconductors
The data shift register S1DAT
This register contains the serial data to be transmitted or data which
has been received. Bit 7 is transmitted or received first; i.e., data is
shifted from right to left.
The address register S1ADR
This 8-bit register may be loaded with the 7-bit slave address to
which the controller will respond when programmed as a slave
receiver/transmitter. The LSB (GC) is used to determine whether the
general call address is recognized.
Table 32. Description of S1ADR bits
1999 Mar 02
Single-chip 8-bit microcontroller
SYMBOL
SLA6 to 0
GC
S1DAT (DAH)
S1ADR (DBH)
S1ADR.7 to 1
S1ADR.0
BIT
S1DAT.7
SLA6
7
7
Own slave address
0 = general call address is not recognized
1 = general call address is recognized
S1DAT.6
SLA5
6
6
Figure 32. Data shift register.
Figure 33. Address register.
S1DAT.5
SLA4
5
5
S1DAT.4
35
SLA3
4
4
P83C557E4/P80C557E4/P89C557E4
S1DAT.3
SLA2
FUNCTION
3
3
S1DAT.2
SLA1
2
2
S1DAT.1
SLA0
1
1
Product specification
S1DAT.0
GC
0
0
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