SZF2002 datasheet(33/76 Pages) PHILIPS

33 / 76 page

1998 Aug 26

Philips Semiconductors

Product speciﬁcation

Low voltage 8-bit microcontroller with

6-kbyte embedded RAM

SZF2002

16.3

Data Shift Register (S1DAT)

S1DAT contains the serial data to be transmitted or data which has just been received. The MSB (bit 7) is transmitted or

received first; i.e. data shifted from right to left. The data received is only valid while the SI bit of the S1CON register is set.

Table 30 Data Shift Register (SFR address DAH)

16.4

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.

Table 31 Address Register (SFR address DBH)

Table 32 Description of S1ADR bits

76543210

S1DAT.7

S1DAT.6

S1DAT.5

S1DAT.4

S1DAT.3

S1DAT.2

S1DAT.1

S1DAT.0

76543210

SLA6

SLA5

SLA4

SLA3

SLA2

SLA1

SLA0

BIT

SYMBOL

DESCRIPTION

7 to 1

SLA6 to

SLA0

Own slave address.

This bit is used to determine whether the general call address is recognized. When

GC = 0, the general call address is not recognized; when GC = 1, the general call

address is recognized.

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