mpc89x51a Megawin Technology, mpc89x51a Datasheet - Page 10

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mpc89x51a

Manufacturer Part Number
mpc89x51a
Description
8-bit Micro-controller
Manufacturer
Megawin Technology
Datasheet
Memory
Organization
10
FZWDTCR
Bits-7
7
Address Space for MPC89x51A embedded Flash memory
Bits-6
6
Address Space for MPC89x51A RAM
ISPAS1
Bits-5
5
Non-volatile register OR0
Non-volatile register OR1
MPC89x51A Data Sheet
OSCDN
ISPAS0
Bits-4
4
80-FF
00-FF
00-7F
00-
80-FF
Bits-3
off-chip memory, enabled by setting ERAM=1
indirect on-chip RAM,
3
RAM, Access it via direct addressing
on-chip expanded RAM (256B),
-
SFR, Access it via direct addressing
Access it via indirect addressing
Access it via MOVX instruction
0000-0FFF Program Memory (4KB)
1000-3BFF
MOVCL
Bits-2
2
shared with ISP program
memory.
ISP program could take
1KB, 2KB or 4KB
depending on OR0[5:4]
NonVolatile data memory
HWBS
Bits-1
SB
1
MEGAWIN
LOCK
Bits-0
EN6T
0

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