MAX7302 Maxim, MAX7302 Datasheet - Page 21

• Manufacturer Part Number: MAX7302
• Description: The MAX7302 I²C-/SMBus™-compatible, serial-interfaced peripheral features 9 level-translating I/Os, and operates from a 1
• Manufacturer: Maxim

Figure 8. Configurable Logic-Array Structure
Figure 9. Configurable Logic Examples
Level-Translating GPIO and LED Driver with CLA
EXAMPLE 1:
REGISTER 0x28: DATA VALUE 8’b1011_1110
REGISTER 0x29: DATA VALUE 8’b0000_1100
P2
P3
P4
P7
P9
P5 OUTPUT REGISTER
P9 OUTPUT REGISTER
ENABLE P5 CASCADE
INVERT P5 CASCADE
ENABLE EXOR23
ENABLE EXOR67
______________________________________________________________________________________
P5 IS CLA/GPIO
P9 IS CLA/GPIO
ENABLE P8
ENABLE P2
ENABLE P3
ENABLE P4
ENABLE P6
ENABLE P7
INVERT P5
INVERT P2
INVERT P3
INVERT P4
INVERT P6
INVERT P7
INVERT P9
INVERT P8
PIN P2
PIN P3
PIN P4
PIN P6
PIN P7
PIN P8
PIN P9
PIN P5
EXAMPLE 2:
REGISTER 0x28: DATA VALUE 8’b0010_0011
REGISTER 0x29: DATA VALUE 8’b0011_1101
P2
P4
P5
P7
P8
P9
ENABLE EXOR23 = /D5 * D4 IN CLA REGISTER 0x28
ENABLE EXOR67 = /D5 * D4 IN CLA REGISTER 0x29
DEBOUNCE
DEBOUNCE
DEBOUNCE
DEBOUNCE
DEBOUNCE
DEBOUNCE
TRANSITION DETECTION
TRANSITION DETECTION
TRANSITION DETECTION
TRANSITION DETECTION
TRANSITION DETECTION
TRANSITION DETECTION
P2
P3
P6
P7
P9
EXAMPLE 3:
REGISTER 0x28: DATA VALUE 8’b1001_1011
REGISTER 0x29: DATA VALUE 8’b1101_1010
SMBus/I
2
C Interfaced 9-Port,
P2
P3
P5
P6
P7
P9
EXAMPLE 4:
REGISTER 0x28: DATA VALUE 8’b0101_1010
REGISTER 0x29: DATA VALUE 8’b0001_1010
P2
P3
P4
P5
P6
P7
P9
EXAMPLE 5:
REGISTER 0x28: DATA VALUE 8’b1110_1111
REGISTER 0x29: DATA VALUE 8’b0101_1010
P2–P5
[CLA0]
P6–P9
[CLA1]
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