80C554 Datasheet, PDF (43/76 Pages) NXP Semiconductors – 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

Philips Semiconductors
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
Preliminary specification
80C554/83C554/87C554
ÇÇÇÇÇÇÇÇ _{RECEPTION OF THE}
OWN SLAVE ADDRESS
ÇÇÇÇÇÇÇÇ _{AND TRANSMISSION}
S
SLA
R
A
OF ONE OR MORE
ÇÇÇÇÇÇÇÇ DATA BYTES
A8H
DATA ^ÇÇÇA^{ÇÇÇÇÇÇÇÇÇ}DAT^ÇÇÇA ^ÇÇÇA^{ÇÇÇÇÇÇ}Po^ÇÇÇrS ^ÇÇÇ
B8H
C0H
ARBITRATION LOAST AS MST
A
AND ADDRESSED AS SLAVE
ÇÇÇÇFROM MASTER TO SLAVE
ÇÇÇÇÇÇÇÇFROM SLAVE TO MASTER
B0H
LAST DATA BYTE TRANSMITTED.
SWITCHED TO NOT ADDRESSED
SLAVE (AA BIT IN S1CON = “0”
ÇÇÇÇÇÇÇÇ _DATA
A
ANY NUMBER OF DATA BYTES AND THEIR ASSOCIATED ACKNOWLEDGE BITS
ÇÇÇÇÇÇ_A ÇÇÇ
C8H
n
THIS NUMBER (CONTAINED IN S1STA) CORRESPONDS TO A DEFINED STATE OF THE I²C BUS. SEE TABLE 9.
All “1”s
Figure 43. Format and States of the Slave Transmitter Mode
ÇÇÇ_PÇÇÇ_{or S} ÇÇÇ
SU00974
2000 Nov 10
43