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AD9559PCBZ Datasheet(PDF) 73 Page - Analog Devices |
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AD9559PCBZ Datasheet(HTML) 73 Page - Analog Devices |
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73 / 120 page ![]() Data Sheet AD9559 Rev. 0 | Page 73 of 120 USER SCRATCHPAD (REGISTER 0x000E AND REGISTER 0x000F) Table 39. User Scratchpad Address Bits Bit Name Description 0x000E [7:0] User scratchpad, Bits[7:0] User programmable EEPROM ID registers. These registers enable users to write a unique code of their choosing to keep track of revisions to the EEPROM register loading. It has no effect on part operation. Default = 0x0000. 0x000F [7:0] User scratchpad, Bits[15:8] GENERAL CONFIGURATION (REGISTER 0x0100 TO REGISTER 0x0109) Multifunction Pin Control (M0 to M5) and Watchdog Timer Table 40. Multifunction Pins (M0 to M5) Control Address Bits Bit Name Description 0x0100 [7:6] M3 driver mode, Bits[1:0] 00 (default) = active high CMOS. 01 = active low CMOS. 10 = open-drain PMOS (requires an external pull-down resistor). 11 = open-drain NMOS (requires an external pull-up resistor). [5:4] M2 driver mode, Bits[1:0] The settings of these bits are identical to Register 0x0100[7:6]. [3:2] M1 driver mode, Bits[1:0] The settings of these bits are identical to Register 0x0100[7:6]. [1:0] M0 driver mode, Bits[1:0] The settings of these bits are identical to Register 0x0100[7:6]. 0x0101 [7:4] Reserved Reserved. [3:2] M5 driver mode, Bits[1:0] The settings of these bits are identical to Register 0x0100[7:6]. Note that, for this pin to be an M pin, either I²C or 2-wire SPI mode must be enabled. [1:0] M4 driver mode, Bits[1:0] The settings of these bits are identical to Register 0x0100[7:6]. Note that, for this pin to be an M pin, 4-wire SPI mode must be disabled. 0x0102 7 M0 output/ A inputE Input/output control for M0 pin. 0 (default) = input (control pin) 1 = output (status pin) [6:0] M0 function These bits control the function of the M0 pin. See Table 196 and Table 197 for details about the input and output functions that are available. Default: 0x00 = high impedance control pin, no function assigned. 0x0103 7 M1 output/ A inputE Input/output control for M1 pin (same as for the M0 pin). [6:0] M1 function These bits control the function of the M1 pin and are the same as Register 0x0102[6:0]. Default: 0x00 = high impedance control pin, no function assigned. 0x0104 7 M2 output/ A inputE Input/output control for M2 pin (same as for the M0 pin). [6:0] M2 function These bits control the function of the M2 pin and are the same as Register 0x0102[6:0]. Default: 0x00 = high impedance control pin, no function assigned. 0x0105 7 M3 output/ A inputE Input/output control for M3 pin (same as for the M0 pin). [6:0] M3 function These bits control the function of the M3 pin and are the same as Register 0x0102[6:0]. Default: 0x00 = high impedance control pin, no function assigned. 0x0106 7 M4 output/ A inputE Input/output control for M3 pin (same as for the M0 pin). [6:0] M4 function These bits control the function of the M4 pin and are the same as Register 0x0102[6:0]. Default: 0x00 = high impedance control pin, no function assigned. 0x0107 7 M5 output/ A inputE Input/output control for M3 pin (same as for the M0 pin). [6:0] M5 function These bits control the function of the M5 pin and are the same as Register 0x0102[6:0]. Default: 0x00 = high impedance control pin, no function assigned. 0x0108 [7:0] Watchdog timer (in units of ms) Watchdog timer, Bits[7:0]. The watchdog timer stops when this register is written, and restarts on the next IO_UPDATE (Register 0x0005 = 0x01). Default: 0x00 (0x0000 = disabled). 0x0109 [7:0] Watchdog timer, Bits[15:8]. The watchdog timer stops when this register is written, and restarts on the next IO_UPDATE (Register 0x0005 = 0x01). Default: 0x00. |
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