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WM8352 Datasheet(PDF) 219 Page - Wolfson Microelectronics plc |
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WM8352 Datasheet(HTML) 219 Page - Wolfson Microelectronics plc |
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219 / 336 page  Production Data WM8352 w PD, February 2011, Rev 4.4 219 27 REGISTER BITS BY ADDRESS REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R0 (00h) Reset/ID 15:0 SW_RESET/CHIP_ID[15:0] 0110_0001_0100_0011 Reading this register returns 6143h. Never reset. Register 00h Reset/ID REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R1 (01h) ID 15:12 CHIP_REV[3:0] The functional silicon revision - this tracks changes in functionality which are separate from ROM mask settings 11:10 CONF_STS[1:0] The state of the configuration pins. This selects what register defaults should be. 7:0 CUST_ID[7:0] The Chip Revision Number Register 01h ID REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R2 (02h) Revision 7:0 MASK_REV[7:0] The ROM Mask ID Register 02h Revision REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R3 (03h) System Control 1 15 CHIP_ON 0 Indicates whether the system is on or off. Writing 0 to this bit powers down the whole chip. Registers which are affected by state machine reset will get reset. Once the system is turned OFF it can be restarted by any of the valid ON event. Reset by state machine. Default held in metal mask. 14 SYS_RST 0 Allows the processors to reboot itself 0 = Do nothing 1 = Perform a processor reset by asserting the /RST and /MEMRST (GPIO) pins for the programmed duration Protected by security key. Reset by state machine. Default held in metal mask. 13 POWERCYCLE 0 Action to take on a fault (if response is set to shutdown system): 0 = Shut down 1 = Shutdown everything then go through startup sequence. i.e. Reboot the system. 12 VCC_FAULT_OV 1 Include over voltage in the /VCC_FAULT pin (Alternative GPIO function) 0 = Do not include over voltage in the /VCC_FAULT signal 1 = Include the over voltage in the /VCC_FAULT signal Reset by state machine. Default held in metal mask. |
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