89C5121-SK1 Atmel, 89C5121-SK1 Datasheet - Page 63
89C5121-SK1
Manufacturer Part Number
89C5121-SK1
Description
KIT SMART CARD FOR AT89C5121
Manufacturer
Atmel
Type
Smart Cardr
Datasheet
1.89C5121-SK1.pdf
(115 pages)
Specifications of 89C5121-SK1
Contents
Board
For Use With/related Products
AT89C5121
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
T89C5121-SK1
T89C5121-SK1
T89C5121-SK1
- Current page: 63 of 115
- Download datasheet (838Kb)
T83C5121 with Mask ROM
Version
In-System Programming
Hardware Interface
4164G–SCR–07/06
Figure 25. CRAM and ROM Mappings
In this version, the customer program is masked in 16 Kbytes ROM.
•
The In-System Programming (ISP) mode is only implemented in the following product
versions:
•
•
(The ROM product version is masked with the customer program and does not need
ISP mode)
The ISP is used to download an Application program in the device and to run it.
The communication protocols which are implemented are: UART and TWI.
The hardware in relation with the two communication protocols is detailed below:
•
•
C000h
FFFFh
F800h
The customer program is masked in ROM during the final production phase. The
ROM size will be determined at mask generation process depending of the program
size.
EEPROM version
CRAM version
TWI protocol
Serial protocol
entry point
Bootloader
ROM
3FFFh
0000h
CRAM
16K bytes
256 bytes
XRAM
A/T8xC5121
256 bytes
RAM
63
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