SZF2002 datasheet(32/76 Pages) PHILIPS

32 / 76 page

1998 Aug 26

Philips Semiconductors

Product speciﬁcation

Low voltage 8-bit microcontroller with

6-kbyte embedded RAM

SZF2002

Table 29 Status codes

S1STA VALUE

DESCRIPTION

MST/TRX mode

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.

MST/REC mode

08H

A START condition has been transmitted.

10H

A repeated START condition has been transmitted.

38H

Arbitration lost while returning ACK.

40H

SLA and R have been transmitted, ACK received.

48H

SLA and R have been transmitted, ACK received.

50H

DATA has been received, ACK returned.

58H

DATA has been received, ACK returned.

SLV/REC mode

60H

Own SLA and W have been received, ACK returned.

68H

Arbitration lost in SLA, R/W as MST. Own SLA and W have been received, ACK returned.

70H

General CALL has been received, ACK returned.

78H

Arbitration lost in SLA, R/W as MST. General CALL has been received.

80H

Previously addressed with own SLA. DATA byte received, ACK returned.

88H

Previously addressed with own SLA. DATA byte received, ACK returned.

90H

Previously addressed with general CALL. DATA byte has been received, ACK has been returned.

98H

Previously addressed with general CALL. DATA byte has been received, ACK has been returned.

A0H

A STOP condition or repeated START condition has been received while still addressed as SLV/REC

or SLV/TRX.

SLV/TRX mode

A8H

Own SLA and R have been received, ACK returned.

B0H

Arbitration lost in SLA and R/W as MST. Own SLA and R have been received, ACK returned.

B8H

DATA byte has been transmitted, ACK received.

C0H

DATA byte has been transmitted, ACK received.

C8H

Last DATA byte has been transmitted (AA = 0), ACK received.

Miscellaneous

00H

Bus error during MST mode or selected SLV mode, due to an erroneous START or STOP condition.

F8H

No relevant state information available, SI = 0.

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