DV164122 Microchip Technology, DV164122 Datasheet - Page 118

• Manufacturer Part Number: DV164122
• Description: ANALYZER SRL PICKIT W/DEMO BOARD
• Manufacturer: Microchip Technology
• Series: PICkit™r
• Type: MCUr

Specifications of DV164122

• Contents: PICkit™ Serial Analyzer, 28-pin Demo Board, USB Cable, and Software with Documentation CD
• Processor To Be Evaluated: PIC16F886
• Interface Type: USB
• Silicon Manufacturer: Microchip
• Kit Application Type: Interface
• Application Sub Type: USB
• Silicon Family Name: PIC16F
• Kit Contents: PICkit Serial Analyzer, Demo Board, USB Cable, Software
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• For Use With/related Products: PIC16F886
• For Use With: PKSERIAL-SPI1 - BOARD DEMO PICKIT SERIAL SPIPKSERIAL-I2C1 - BOARD DEMO PICKIT SERIAL I2C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: Q3260228

11.8
DS51647B-page 112
SPI COMMUNICATIONS
SPI is a 4-wire serial protocol that uses data in, data out, clock and Chip Select pins. It
is a very basic protocol using a clock edge to capture data. The CONTROL_BLOCK is
used to enable SPI event markers, set the bit rate and configure transaction/protocol
options.
TABLE 11-31: CONNECTOR PINOUT IN SPI MODE
TABLE 11-32: SPI CONTROL BLOCK
Note 1: CSPOL determines the ‘active’ state of CS,
Byte
16
17
18
19
20
21
22
23
if CSPOL=0, CS is active low
if CSPOL=1, CS is active high
upon initialization, CS is set ‘inactive’
Pin
1
2
3
4
5
6
7:0
7:0
7:0
7:0
7:0
7:0
7:0
7:0
Bit
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
Bit flags
1 = Event marker enable: read byte
1 = Event marker enable: write byte
1 = Event marker enable: status error
1 =
1 =
1 =
1 =
1 =
SPI Configuration bits
1 = SMP (sample phase)
1 = CKE (clock edge select)
1 = CKP (clock polarity)
1 = DAOD (disable auto output disable on data input)
n/a
n/a
n/a
CSPOL (Chip Select Polarity), 0=LO TRUE, 1=HI TRUE
BIT RATE: Pre-scale code
BIT RATE: Scaling code
COMM: SPI
Description
Description
SDO
SCK
G
SDI
CS
+V
ND
© 2007 Microchip Technology Inc.
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