PIC16F690DM-PCTLHS Microchip Technology, PIC16F690DM-PCTLHS Datasheet - Page 191
PIC16F690DM-PCTLHS
Manufacturer Part Number
PIC16F690DM-PCTLHS
Description
BOARD DEMO PICTAIL HUMIDITY SNSR
Manufacturer
Microchip Technology
Series
PICtail™r
Datasheets
1.PIC16F690DM-PCTLHS.pdf
(36 pages)
2.PIC16F690DM-PCTLHS.pdf
(32 pages)
3.PIC16F690DM-PCTLHS.pdf
(306 pages)
4.PIC16F690DM-PCTLHS.pdf
(14 pages)
Specifications of PIC16F690DM-PCTLHS
Sensor Type
Humidity
Sensing Range
1 ~ 99% RH
Interface
Analog
Voltage - Supply
5V
Embedded
Yes, MCU, 8-Bit
Utilized Ic / Part
MCP6291, PIC16F690
Processor To Be Evaluated
MCP6291 and PIC16F690
Interface Type
ICSP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC162061 - HEADER INTRFC MPLAB ICD2 20PIN
Sensitivity
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
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13.12.1
Once the SSP module has been enabled, it waits for a
Start condition to occur. Following the Start condition,
the 8-bits are shifted into the SSPSR register. All
incoming bits are sampled with the rising edge of the
clock (SCL) line. The value of register SSPSR<7:1> is
compared to the value of the SSPADD register. The
address is compared on the falling edge of the eighth
clock (SCL) pulse. If the addresses match, and the BF
and SSPOV bits are clear, the following events occur:
a)
b)
c)
d)
In 10-bit Address mode, two address bytes need to be
received by the slave (Figure 13-8). The five Most
Significant bits (MSbs) of the first address byte specify
if this is a 10-bit address. Bit R/W (SSPSTAT<2>) must
specify a write so the slave device will receive the
second address byte. For a 10-bit address, the first
byte would equal ‘1111 0 A9 A8 0’, where A9 and
A8 are the two MSbs of the address.
TABLE 13-3:
© 2008 Microchip Technology Inc.
Note:
Transfer is Received
Status Bits as Data
The SSPSR register value is loaded into the
SSPBUF register.
The buffer full bit, BF is set.
An ACK pulse is generated.
SSP interrupt flag bit, SSPIF of the PIR1 register
is set (interrupt is generated if enabled) on the
falling edge of the ninth SCL pulse.
BF
0
1
1
0
ADDRESSING
Shaded cells show the conditions where the user software did not properly clear the overflow condition.
SSPOV
DATA TRANSFER RECEIVED BYTE ACTIONS
0
0
1
1
SSPSR → SSPBUF
PIC16F631/677/685/687/689/690
Yes
No
No
No
The sequence of events for 10-bit address is as
follows, with steps 7-9 for slave-transmitter:
1.
2.
3.
4.
5.
6.
7.
8.
9.
Generate ACK
Receive first (high) byte of address (bits SSPIF,
BF and bit UA (SSPSTAT<1>) are set).
Update the SSPADD register with second (low)
byte of address (clears bit UA and releases the
SCL line).
Read the SSPBUF register (clears bit BF) and
clear flag bit SSPIF.
Receive second (low) byte of address (bits
SSPIF, BF and UA are set).
Update the SSPADD register with the first (high)
byte of address; if match releases SCL line, this
will clear bit UA.
Read the SSPBUF register (clears bit BF) and
clear flag bit SSPIF.
Receive repeated Start condition.
Receive first (high) byte of address (bits SSPIF
and BF are set).
Read the SSPBUF register (clears bit BF) and
clear flag bit SSPIF.
Pulse
Yes
No
No
No
(SSP Interrupt occurs
Set bit SSPIF
if enabled)
Yes
Yes
Yes
Yes
DS41262E-page 189
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