ez80f92 ZiLOG Semiconductor, ez80f92 Datasheet - Page 163
ez80f92
Manufacturer Part Number
ez80f92
Description
Ez80acclaim Flash Microcontrollers
Manufacturer
ZiLOG Semiconductor
Datasheet
1.EZ80F92.pdf
(261 pages)
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PS015313-0508
set to 1, the I
GCE bit (I2C_SAR[0]) is set to 1.
When the Master Mode Start bit (STA) is set to 1, the I
sends a START condition on the bus when the bus is free. If the STA bit is set to 1 when
the I
repeated START condition is sent. If the STA bit is set to 1 when the I
in SLAVE mode, the I
MASTER mode when the bus is released. The STA bit is automatically cleared after a
START condition is set. Writing a 0 to this bit produces no effect.
If the Master Mode Stop bit (STP) is set to 1 in MASTER mode, a STOP condition is
transmitted on the I
as if a STOP condition is received, but no STOP condition is transmitted. If both STA and
STP bits are set, the I
and then transmit the START condition. The STP bit is cleared automatically. Writing a 0
to this bit produces no effect.
The I
I
set to 1 and the IEN bit is also set, an interrupt is generated. When IFLG is set by the I
the Low period of the I
When a 0 is written to IFLG, the interrupt is cleared and the I
When the I
acknowledge clock pulse on the I
•
•
•
When AAK is cleared to 0, a NACK is sent when a data byte is received in MASTER or
SLAVE mode. If AAK is cleared to 0 in the Slave Transmitter mode, the byte in the
I2C_DR register is assumed to be the final byte. After this byte is transmitted, the I
block enter states
its slave address unless AAK is set. See
2
C states is entered. The only state that does not set the IFLG bit is state F8h. If IFLG is
Either the whole of a 7-bit slave address or the first or second byte of a 10-bit slave
address is received
The general call address is received and the General Call Enable bit in I2C_SAR is set
to 1
A data byte is received while in MASTER or SLAVE modes
2
2
C module is already in MASTER mode and one or more bytes are transmitted, then a
C Interrupt Flag (IFLG) is set to 1 automatically when any of 30 of the possible 31
2
C Acknowledge bit (AAK) is set to 1, an Acknowledge is sent during the
2
C responds to calls to its slave address and to the general call address if the
C8h
2
C bus. If the STP bit is set to 1 in slave move, the I
2
, then returns to the idle state. The I
2
C block first transmits the STOP condition (if in MASTER mode)
2
C completes the data transfer in SLAVE mode and then enters
C bus clock line is stretched and the data transfer is suspended.
2
C bus if:
Table 87
on page 157.
2
C enters MASTER mode and
2
C module does not respond to
2
C clock line is released.
Product Specification
2
I2C Serial I/O Interface
2
C block is accessed
C module operates
2
C
2
C,
156
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