Motorola MC68VZ328 3.1 Programmers Memory Map

3-2 MC68VZ328 User’s Manual 
Programmer’s Memory Map
3.1 Programmer’s Memory Map
On reset the base address used in the table is 0xFFFFF000 (or 0xXXFFF000, where XX is “don’t care”). If
a double-mapped bit is cleared in the system control register, then the base address is 0xFFFFF000 only.
Unpredictable results occur if you write to any 4K register space not documented in Table3-1 or Table 3-2
on page 3-8.
Table 3-1. Programmer’s Memory Map (Sorted by Address)
Address Name Width Description Reset Value Page
Number
0xFFFFF000 SCR 8 System control register 0x1C 5-2
0xFFFFF003 PCR 8 Peripheral control register 0x00 5-4
0xFFFFF004 IDR 32 Silicon ID register 0x56000000 5-5
0xFFFFF008 IODCR 16 I/O drive control register 0x1FFF 5-6
0xFFFFF100 CSGBA 16 Chip-select group A base register 0x0000 6-4
0xFFFFF102 CSGBB 16 Chip-select group B base register 0x0000 6-4
0xFFFFF104 CSGBC 16 Chip-select group C base register 0x0000 6-4
0xFFFFF106 CSGBD 16 Chip-select group D base register 0x0000 6-4
0xFFFFF108 CSUGBA 16 Chip-select upper group address
register 0x0000 6-6
0xFFFFF10A CSCR 16 Chip-select control register 0x0000 6-16
0xFFFFF110 CSA 16 Group A chip-select register 0x00B0 6-8
0xFFFFF112 CSB 16 Group B chip-select register 0x0000 6-8
0xFFFFF114 CSC 16 Group C chip-select register 0x0000 6-8
0xFFFFF116 CSD 16 Group D chip-select register 0x0200 6-8
0xFFFFF118 EMUCS 16 Emulation chip-select register 0x0060 6-16
0xFFFFF200 PLLCR 16 PLL control register 0x24B3 4-8
0xFFFFF202 PLLFSR 16 PLL frequency select register 0x0347 4-10
0xFFFFF204 RES —Reserved — —
0xFFFFF207 PCTLR 8 Power control register 0x1F 4-14
0xFFFFF300 IVR 8 Interrupt vector register 0x00 9-7
0xFFFFF302 ICR 16 Interrupt control register 0x0000 9-8
0xFFFFF304 IMR 32 Interrupt mask register 0x00FFFFFF 9-10
0xFFFFF308 RES 32 Reserved — —
0xFFFFF30C ISR 32 Interrupt status register 0x00000000 9-12