Philips P89LPC907 用户手册

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页码 110
Philips Semiconductors
User’s Manual - Preliminary -
P89LPC906/907/908
GENERAL DESCRIPTION
2003 Dec 8     
24
MEMORY ORGANIZATION
The P89LPC906/907/908 memory map is shown in Figure 1-1.
Figure 1-1: P89LPC906/907/908 Memory Map
The various P89LPC906/907/908 memory spaces are as follows:
DATA
128 bytes of internal data memory space (00h..7Fh) accessed via direct or indirect addressing, using instructions 
other than MOVX and MOVC.
SFR
Special Function Registers. Selected CPU registers and peripheral control and status registers, accessible only via 
direct addressing.
CODE
1KB of Code memory accessed as part of program execution and via the MOVC instruction.
1 KB Flash Code
Memory Space
0000h
00FFh
Sector 0
Sector 1
0100h
01FFh
0200h
02FFh
Sector 2
Sector 3
0300h
03FFh
Data Memory
(DATA, IDATA)
128 Bytes On-Chip 
Data Memory (stack,
direct and indir. addr.)
Special Function
Registers
(directly addressable)
00h
7Fh
80h
FFh
DATA
4 Reg. Banks R0-R7