IP2022 User’s Manual—Register Quick Reference www.ubicom.com 387 0x00F MULH Multiply result (high byte) 00000000 0x010 ADDRH External/program memory pointer
(bits 15:8) 00000000 0x011 ADDRL External/program memory pointer
(bits 7:0) 00000000 0x012 DATAH External/program memory data (high
byte) 00000000 0x013 DATAL External/program memory data (low
byte) 00000000 0x014 INTVECH Interrupt vector (high byte) 00000000 0x015 INTVECL Interrupt vector (low byte) 00000000 0x016 INTSPD Interrupt speed register 00000000 0x017 INTF Port B interrupt flags Undefined 0x018 INTE Port B interrupt enable bits 00000000 0x019 INTED Port B interrupt edge select bits 00000000 0x001 FCFG Flash configuration register 00000000 0x01B TCTRL Timer 1/2 common control register 00000000 0x01C XCFG Extended configuration 00000001 0x01D EMCFG External memory configuration regis-
ter 00000000 0x01E IPCH Interrupt return address (high byte) 00000000 0x01F IPCL Interrupt return address (low byte) 00000000 0x020 RAIN Data on Port A pins (read-only, upper
four bits read as 0000) N/A Table C-1  Register Addresses and Reset State (continued) Address Name Description Reset
Value