SX User’s Manual Rev. 3.1 48 © 2000 Scenix Semiconductor, Inc. All rights reserved. www.scenix.com Chapter 2 Architecture Figure 2-7 Device Configuration Register Formats FUSE Word for SX18/20/28AC and SX18/20/28AC75 FUSE Word for SX48/52BD FUSEX Word for SX18/20/28AC and SX18/20/28AC75 FUSEX Word for SX48/52BD DEVICE Word (Hard-Wired Read-Only)- Part ID TURBO    SYNC    Reserved Reserved    IRC    DIV1/IFBD DIV0/FOSC2 Reserved    CP   WDTE   FOSC1   FOSC0 Bit 11 Bit 0 Unused    SYNC   Unused    Unused   IRC    DIV1/IFBD DIV0/FOSC2 XTLBUF_EN    CP   WDTE   FOSC1   FOSC0 Bit 11 Bit 0 IRCTRIM2 PINS IRCTRIM1 IRCTRIM0 OPTIONX/ STACKX CF   BOR1    BOR0 BORTRIM1 BORTRIM0 BP1    BP0 Bit 11 Bit 0 IRCTRIM2   SLEEPCLK    IRCTRIM1   IRCTRIM0   Unused   CF   BOR1   BOR0   BORTR1   BORTR0   DRT1   DRT0 Bit 11 Bit 0 Part ID Code: FCEh for the SX18/20/28AC or 001h for the SX48/52BD Bit 11 Bit 0