Datasheet

Memory Map
I/O Section
MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3 Technical Data
Freescale Semiconductor Memory Map 41
2.3 I/O Section
Addresses $0000–$003F, shown in Figure 2-2, contain most of the
control, status, and data registers. Additional I/O registers have these
addresses:
• $FE00; break status register, BSR
• $FE01; reset status register, RSR
• $FE02; reserved
• $FE03; break flag control register, BFCR
• $FE04; interrupt status register 1, INT1
• $FE05; reserved
• $FE06; reserved
• $FE07; reserved
• $FE08; FLASH control register, FLCR
• $FE09; FLASH block protect register, FLBPR
• $FE0A; reserved
• $FE0B; reserved
• $FE0C; break Address Register High, BRKH
• $FE0D; break Address Register Low, BRKL
• $FE0E; break status and control register, BRKSCR
• $FFFF; COP control register, COPCTL
2.4 Monitor ROM
The 512 bytes at addresses $FC00–$FDFF and 464 bytes at addresses
$FE10–$FFDF are reserved ROM addresses that contain the
instructions for the monitor functions. (See Section 10. Monitor ROM
(MON).)