OM6277,598 NXP Semiconductors, OM6277,598 Datasheet - Page 14

• Manufacturer Part Number: OM6277,598
• Description: DEMO BOARD FOR PCA9564
• Manufacturer: NXP Semiconductors

Specifications of OM6277,598

• Main Purpose: Interface, I2C Controller
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: PCA9564
• Primary Attributes: I2C Bus Controller, 1 8-Bit GPIO, 1 8-Bit LED Dimmer
• Secondary Attributes: 8 Momentary Switches, 23 LEDs
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Other names: 568-4001; 935283226598

•
Embedded programs flowcharts
Program Selection
Program 4 uses the P89LV51RD2/PCA9564 as an I
an I
the 3 LSB’s of the P89LPC932 I
the P89LV51RD2)
Action on the pushbuttons:
-
-
-
LD11 and LD12 provide the following information:
-
-
-
-
Program 4 (LD9 = ON, LD10 = ON): I
2
S2: Resets the P89LV51RD2 search routine algorithm and initiates a P89LPC932 I
S8: Jump to the next program (Program 1)
S1: Initiates the P89LPC932’s I
LD11 = OFF → I
LD11 = ON → I
LD12 = OFF → search routine not performed yet
LD12 = ON → search routine performed and I
C slave. In this mode, the PCA9564 searches for the P89LPC932’s I
memorization. The P89LPC932 scans its GPIO’s in order to memorize logic values associated with
jumpers JP19 to JP21.
2
2
C address not found or search routine not performed yet
C address search routine successful
NO
NO
NO
NO
NO
2
C slave address, the 4 MSB’s of the address are fixed. The address is unknown to
RESET pushbutton (S9) pushed
2
C address search routine
NO PROGRAM
PROGRAM 1
PROGRAM 2
PROGRAM 3
Power – up or
PROGRAM 4
SELECTED
Figure 5. Program selection
S8 pushed?
S8 pushed?
S8 pushed?
S8 pushed?
S8 pushed?
2
C address search
YES
YES
YES
YES
YES
2
2
C master and the P89LPC932 (with jumpers JP19 to JP21) as
C address not found
14
Note:
At power up or when an action on the RESET pushbutton is
performed, no program is selected and LD9 to LD12 are ON.
STATES of LEDs when entering the programs
LD9
LD10
LD11
LD12
LD[1:8]
LD[13:20]
LD[21:23]
LD9
LD10
LD[1:8]
LD11
LD12
LD[13:20]
LD[21:23]
LD9
LD10
LD[1:8]
LD11
LD12
LD[13:20]
LD[21:23]
LD9
LD10
LD[1:8]
LD11
LD12
LD[13:20]
LD[21:23]
LD9
LD10
LD[1:8]
LD11
LD12
LD[13:20]
LD[21:23]
2
C slave address (JP19 to JP21 programs
= ON
= ON
= ON
= ON
= OFF
= OFF
= OFF
= OFF
= OFF
= default blinking rate
= OFF
= OFF
= OFF
= OFF
= ON
= OFF
= OFF
= OFF
= OFF
= OFF
= OFF
= OFF
= ON
= OFF
= OFF
= OFF
= OFF
= OFF
= ON
= ON
= OFF
= OFF
= OFF
= OFF
= OFF
2
C address scanning and