Datasheet MAX6951 (Analog Devices) - 8

Serially Interfaced, +2.7V to +5.5V, 5- and 8-Digit LED Display Drivers Table 3. Register Address Map COMMAND ADDRESS HEX REGISTER D15 D14 D13 D12 D11 D10 D9 D8 CODE
No-Op 0 0 0 0 0 0 0 0 0x00 Decode Mode 0 0 0 0 0 0 0 1 0x01 Intensity 0 0 0 0 0 0 1 0 0x02 Scan Limit 0 0 0 0 0 0 1 1 0x03 Configuration 0 0 0 0 0 1 0 0 0x04 Factory reserved. Do not write to this. 0 0 0 0 0 1 1 0 0x06 Display Test 0 0 0 0 0 1 1 1 0x07 Digit 0 plane P0 only (plane 1 unchanged) 0 0 1 0 0 0 0 0 0x20 Digit 1 plane P0 only (plane 1 unchanged) 0 0 1 0 0 0 0 1 0x21 Digit 2 plane P0 only (plane 1 unchanged) 0 0 1 0 0 0 1 0 0x22 Digit 3 plane P0 only (plane 1 unchanged) 0 0 1 0 0 0 1 1 0x23
MAX6950/MAX6951
Digit 4 plane P0 only (plane 1 unchanged) 0 0 1 0 0 1 0 0 0x24 Digit 5 plane P0 only (plane 1 unchanged) 0 0 1 0 0 1 0 1 0x25 Digit 6 plane P0 only (plane 1 unchanged) 0 0 1 0 0 1 1 0 0x26 Digit 7 plane P0 only (plane 1 unchanged) 0 0 1 0 0 1 1 1 0x27 Digit 0 plane P1 only (plane 0 unchanged) 0 1 0 0 0 0 0 0 0x40 Digit 1 plane P1 only (plane 0 unchanged) 0 1 0 0 0 0 0 1 0x41 Digit 2 plane P1 only (plane 0 unchanged) 0 1 0 0 0 0 1 0 0x42 Digit 3 plane P1 only (plane 0 unchanged) 0 1 0 0 0 0 1 1 0x43 Digit 4 plane P1 only (plane 0 unchanged) 0 1 0 0 0 1 0 0 0x44 Digit 5 plane P1 only (plane 0 unchanged) 0 1 0 0 0 1 0 1 0x45 Digit 6 plane P1 only (plane 0 unchanged) 0 1 0 0 0 1 1 0 0x46 Digit 7 plane P1 only (plane 0 unchanged) 0 1 0 0 0 1 1 1 0x47 D i g i t 0 p l ane P 0 and p l ane P 1 ( w i th sam e d ata) 0 1 1 0 0 0 0 0 0x60 D i g i t 1 p l ane P 0 and p l ane P 1 ( w i th sam e d ata) 0 1 1 0 0 0 0 1 0x61 D i g i t 2 p l ane P 0 and p l ane P 1 ( w i th sam e d ata) 0 1 1 0 0 0 1 0 0x62 D i g i t 3 p l ane P 0 and p l ane P 1 ( w i th sam e d ata) 0 1 1 0 0 0 1 1 0x63 D i g i t 4 p l ane P 0 and p l ane P 1 ( w i th sam e d ata) 0 1 1 0 0 1 0 0 0x64 D i g i t 5 p l ane P 0 and p l ane P 1 ( w i th sam e d ata) 0 1 1 0 0 1 0 1 0x65 D i g i t 6 p l ane P 0 and p l ane P 1 ( w i th sam e d ata) 0 1 1 0 0 1 1 0 0x66 D i g i t 7 p l ane P 0 and p l ane P 1 ( w i th sam e d ata) 0 1 1 0 0 1 1 1 0x67
No-Op Register Display-Test Register
The no-op register is used when the MAX6950/ The display-test register switches the drivers between MAX6951 are connected as the last device on a chain one of two modes: normal and display test. Display-test of cascaded SPI devices. To write the other cascaded mode turns all LEDs on by overriding, but not altering, device(s), ensure that while the intended device all control and digit registers (including the Shutdown receives its specific command, the MAX6950/MAX6951 register) In display-test mode, eight digits are scanned receive a no-op command. and the duty cycle is 7/16 (half power). Table 11 lists the display-test register format.
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