mpc89x54a Megawin Technology, mpc89x54a Datasheet - Page 10

• Manufacturer Part Number: mpc89x54a
• Description: 8-bit Micro-controller
• Manufacturer: Megawin Technology

Memory
Organization
10
FZWDTCR
Bit-7
7
Address Space for MPC89x54A Embedded Flash Memory
Bit-6
6
Address Space for MPC89x54A RAM
ISPAS1
Bit-5
5
Non-volatile register OR0
Non-volatile register OR1
MPC89x54A Data Sheet
OSCDN
ISPAS0
Bit-4
4
80-FF
0000-03FF on-chip expanded RAM (1024B),
00-7F
0000-
80-FF
Bit-3
indirect on-chip RAM,
3
RAM, Access it via direct addressing
-
SFR, Access it via direct addressing
Access it via indirect addressing
Access it via MOVX instruction
off-chip memory, enabled by setting ERAM
0000-3FFF Program Memory (16KB)
4000-FBFF NonVolatile data memory
MOVCL
Bit-2
2
shared with ISP program
memory.
ISP program could take
1KB, 2KB or 4KB
depending on OR0[5:4]
HWBS
Bit-1
SB
1
MEGAWIN
LOCK
EN6T
Bit-0
0