Z51F3220FNX Datasheet, PDF (56/312 Pages) Zilog, Inc. – Z8051 Series 8-Bit Microcontrollers

Z51F3220
Product Specification
8.3 XRAM Memory
Z51F3220 has 768 bytes XRAM. This area has no relation with RAM/Flash. It can be read and written to
through SFR with 8-bit unit.
107 FH
Extended
Special Function Registers
128 Bytes
(Indirect Addressing )
1000 H
Not used
02FFH
External RAM
768 Bytes
(Indirect Addressing )
001BH
001AH
0000 H
LCD Display RAM
Figure 8.4 XDATA Memory Area
PS029902-0212
PRELIMINARY
53