at83c5122 ATMEL Corporation, at83c5122 Datasheet - Page 31
![no-image](/images/manufacturer_photos/0/0/79/atmel_corporation_sml.jpg)
at83c5122
Manufacturer Part Number
at83c5122
Description
At83c5123 C51 Microcontroller With Usb And Smart Card Reader Interfaces
Manufacturer
ATMEL Corporation
Datasheet
1.AT83C5122.pdf
(213 pages)
- Current page: 31 of 213
- Download datasheet (3Mb)
Figure 14. AT8xC5122’s ROM Version
4202E–SCR–06/06
PROGRAM MEMORY
DATA MEMORY
(Read only)
(Read / Write)
0000
7FFF
01FF
0000
EXTRAM=0
INTERNAL
32K ROM
512 bytes
EA=1
On-chip
XRAM
Roll-Over
Roll-Over
RESET@
<0000>
FFFF
0000
FFFF
0200
01FF
8000
EXTRAM=1
EXTERNAL
EXTERNAL
EXTERNAL
EXTERNAL
RD
EA=0
XRAM
XRAM
WR
PSEN
Optional
On-Chip 256 bytes RAM
FF
80
01FF
7F
0000
00
Indirect
Addressing
128 Bytes
Upper
INTERNAL
RAM
512 Bytes
E2PROM
128 Bytes
AT8xC5122/23
Lower
RAM
FF
80
Direct
Addressing
Space
SFR
31
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