DV164122 Microchip Technology, DV164122 Datasheet - Page 108

• 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

11.7
DS51647B-page 102
I
2
CS COMMUNICATIONS
The I
to one or more bus addresses. Three operating modes (described below) provide sev-
eral levels of sophistication and operability. In all modes, transactions can be reported
to the host using optional PKSA event tags. Additionally, mode-dependant data is avail-
able as described below.
TABLE 11-20:
11.7.1
11.7.1.1
As stated in the introduction, the DEFAULT mode requires little/no configuration and
results in minimal transaction latencies. This mode is of limited use in that it does not
provide for address-dependant (dynamic) read data. The CONTROL_BLOCK is the
source of ‘read’ data for any/all addresses. Of course optional EVENT markers report
I
2
0
1
2
C transactions to the host.
MODE
Note:
2
CS communication mode is a flexible I
Modes
MODE: DEFAULT
The ability to service multiple slave addresses is hampered by a bug in
silicon - versions A3 and before. Slave address MASK should be set to
zero (“0”).
DEFAULT
INTERACTIVE
AUTO
NAME
basic/mechanical mode of operation in which the PKSA
blindly accepts any/all ‘write’ data and provides
canned/default ‘read’ data in response to any enabled
I2C address and all device registers/addresses (data
defined in CONTROL_BLOCK).
This mode allows the host to orchestrate I2C transactions
in ‘real time’. This necessarily requires the host to provide
‘read’ data as needed while the PKSA holds the I2C bus
clock line (waiting). ‘Write’ data is reported to the host via
transaction event tags.
In AUTO mode the PKSA operates autonomously as
defined by a ‘soft’ “SLAVE PROFILE” table stored in
PKSA RAM (described below). At any time the host can
read and/or update the table contents as needed.
2
C slave that can be configured to respond
DESCRIPTION
© 2007 Microchip Technology Inc.