X96011_08 Datasheet, PDF (12/18 Pages) Intersil Corporation – Temperature Sensor with Look-Up Table Memory and DAC

VOLTAGE
V_ADCOK
X96011
V_CC
0V
CURRENT
ADC TIME
TIME
I_x
I_X X 10%
FIGURE 8. CONVERTER POWER-ON RESET RESPONSE
TIME
Serial Stop Condition
All communications must be terminated by a STOP
condition, which is a LOW to HIGH transition of SDA while
SCL is HIGH. The STOP condition is also used to place the
device into the Standby power mode after a read sequence.
A STOP condition can only be issued after the transmitting
device has released the bus. See Figure 9.
Serial Acknowledge
An ACK (Acknowledge), is a software convention used to
indicate a successful data transfer. The transmitting device,
either master or slave, releases the bus after transmitting
eight bits. During the ninth clock cycle, the receiver pulls the
SDA line LOW to acknowledge the reception of the eight bits
of data. See Figure 11.
The device responds with an ACK after recognition of a
START condition followed by a valid Slave Address byte. A
valid Slave Address byte must contain the Device Type
Identifier 1010, and the Device Address bits matching the
logic state of pins A2, A1, and A0. See Figure 13.
If a write operation is selected, the device responds with an
ACK after the receipt of each subsequent eight-bit word.
In the read mode, the device transmits eight bits of data,
releases the SDA line, and then monitors the line for an
ACK. The device continues transmitting data if an ACK is
detected. The device terminates further data transmissions if
an ACK is not detected. The master must then issue a STOP
condition to place the device into a known state.
1. The X96011 acknowledges all incoming data and
address bytes except: 1) The “Slave Address Byte” when
the “Device Identifier” or “Device Address” are wrong; 2)
All “Data Bytes” when the “WEL” bit is “0”, with the
exception of a “Data Byte” addresses to location 86h; 3)
“Data Bytes” following a “Data Byte” addressed to
locations 80h, 85h, or 86h.
12
FN8215.2
February 25, 2008