Register Addresses Assignments - NXP Semiconductors MC9S08SU16 Reference Manual

Register addresses assignments

Table 3-1. Reset and interrupt vectors (continued)
Address
Vector number
(high/low)
5 0xFFF4:FFF5
4 0xFFF6:FFF7
3 0xFFF8:FFF9
2 0xFFFA:FFFB
1 0xFFFC:FFFD
0 0xFFFE:FFFF
3.3 Register addresses assignments
The register definitions vary in different memory sizes. The register addresses of unused
peripherals are reserved. The following table shows the register availability of the
devices.
The registers in the devices are divided into two groups:
• Direct-page registers are located in the first 128 locations in the memory map, so
they can be accessed with efficient direct addressing mode instructions.
• High-page registers are used much less often, so they are located above 0x1800 in
the memory map. This leaves room in the direct page for more frequently used
registers and variables.
46
Vector
PWM fault
Over voltage
warning
Low voltage
warning
PMC high temp
warning
Xbar_IRQ
SWI
Reset
MC9S08SU16 Reference Manual, Rev. 5, 4/2017
Vector name Module
Vmcpwmf mcPWM
Vovw GDU
Vlvw PMC
Virq Crossbar
Vswi Core
Vreset System Control
Source
FFLAG0
FFLAG1
FFLAG2
FFLAG3
OVWF
LVWF
HTIF
IRQF
SWI instruction
POR
WCOP
LVD
LOC
/Reset pin
illegal opcode
illegal address
flash illegal access
NXP Semiconductors