MA160014 Microchip Technology, MA160014 Datasheet - Page 230

• Manufacturer Part Number: MA160014
• Description: MOD PLUG-IN 44PIN PIC18LF45K22
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of MA160014

• Accessory Type: Plug-In Module (PIM) - PIC18LF45K10
• Product: Microcontroller Modules
• Data Bus Width: 8 bit
• Core Processor: PIC18LF45K22
• Interface Type: I2C, SPI
• Operating Supply Voltage: 1.8 V to 5.5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: PICDEM PIC18 Explorer, DM183032
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC18(L)F2X/4XK22
15.5.3.3
Setting the AHEN bit of the SSPxCON3 register
enables additional clock stretching and interrupt
generation after the 8th falling edge of a received
matching address. Once a matching address has
been clocked in, CKP is cleared and the SSPxIF
interrupt is set.
Figure 15-18
Address Slave Transmission with AHEN enabled.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. Slave hardware automatically clears the CKP bit
11. Slave software clears SSPxIF.
12. Slave loads value to transmit to the master into
13. Slave sets CKP bit releasing the clock.
14. Master clocks out the data from the slave and
15. Slave hardware copies the ACK value into the
16. Steps 10-15 are repeated for each byte
17. If the master sends a not ACK the slave
DS41412D-page 230
Note: SSPxBUF cannot be loaded until after the
Note: Master must send a not ACK on the last byte
Bus starts Idle.
Master sends Start condition; the S bit of
SSPxSTAT is set; SSPxIF is set if interrupt on
Start detect is enabled.
Master sends matching address with R/W bit
set. After the 8th falling edge of the SCLx line
the CKP bit is cleared and SSPxIF interrupt is
generated.
Slave software clears SSPxIF.
Slave software reads ACKTIM bit of SSPxCON3
register, and R/W and D/A of the SSPxSTAT
register to determine the source of the interrupt.
Slave reads the address value from the SSPxBUF
register clearing the BF bit.
Slave software decides from this information if it
wishes to ACK or not ACK and sets ACKDT bit
of the SSPxCON2 register accordingly.
Slave sets the CKP bit releasing SCLx.
Master clocks in the ACK value from the slave.
and sets SSPxIF after the ACK if the R/W bit is
set.
SSPxBUF setting the BF bit.
sends an ACK value on the 9th SCLx pulse.
ACKSTAT bit of the SSPxCON2 register.
transmitted to the master from the slave.
releases the bus allowing the master to send a
Stop and end the communication.
ACK.
to ensure that the slave releases the SCLx
line to receive a Stop.
7-bit Transmission with Address
Hold Enabled
displays a standard waveform of a 7-bit
Preliminary
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