89C5121-SK1 Atmel, 89C5121-SK1 Datasheet - Page 69
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: 69 of 115
- Download datasheet (838Kb)
UART Protocol
Overview
Physical Layer
Datas and Limits
Frame Description
4164G–SCR–07/06
Table 49. Valid Software Security Byte Values
The serial protocol used is described below.
The UART is used to transmit information with the following configuration:
•
•
•
•
•
As described in Section “Transfer Checks”, the downloaded program include the CRC
values in the last two upper bytes of the 16K bytes space.
An update of a part of the 16K program cannot be done because the CRC value would
have to be updated with a value which depends of the actual value of the rest of the
program.
So the Program function of the PC Software Tool include the individual program com-
mands (with 64 data bytes) from address 0000h to address 3FFFh.
The Serial Protocol is based on the Intel Hex-type records.
Intel Hex records consist of ASCII characters used to represent hexadecimal values and
are summarized below:
Table 50. Intel Hex Type Frame
•
•
•
SSB Values
FE
FC
BF,BE,BC
7F,7E,7C
3F,3E,3C
Record Mark ‘:’
Character: 8-bit data
Parity: none
Stop: 1 bit
Flow control: none
Baudrate: autobaud is performed by the bootloader to compute the baudrate
chosen by the host.
Record Mark:
–
Reclen:
–
Load Offset:
–
1-byte
Record Mark is the start of frame. This field must contain’:’.
Reclen specifies that the number of bytes of information or data that follow
the Record Type field of the record.
Load Offset specifies the 16-bit starting load offset of the data bytes,
therefore this field is used only for Program Data Record (see Table 51).
1-byte = 40h
Reclen
Load Offset
Functions
No bypass and level1 security
No bypass and level2 security
UART bypass and security levels
External TWI bypass and security levels
UART and Ext. TWI bypass
2-byte
Record Type
1-byte
Data or Info
64-byte
A/T8xC5121
Checksum
1-byte
69
Related parts for 89C5121-SK1
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
DEV KIT FOR AVR/AVR32
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
High-performance EE PLD
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
8-bit Flash Microcontroller
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
2-Wire Serial EEPROM
Manufacturer:
ATMEL Corporation
Datasheet: