T89C51CC01UA-RLTIM Atmel, T89C51CC01UA-RLTIM Datasheet - Page 10

• Manufacturer Part Number: T89C51CC01UA-RLTIM
• Description: IC 8051 MCU FLASH 32K 44VQFP
• Manufacturer: Atmel
• Series: AT89C CANr

Specifications of T89C51CC01UA-RLTIM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: CAN, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 1.25K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• For Use With: AT89STK-06 - KIT DEMOBOARD 8051 MCU W/CAN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: T89C51CC01UARLTIM

Active CAN Bootloader Errata List
• Watchdog and Flash API Starting the Bootloader Execution
• Start application with Software Security Set
CAN Bootloader Errata History
CAN Bootloader Errata Description
1. The CAN is Not Stopped
2. Watchdog and Flash API Starting the Bootloader Execution
3. Flash API ’__api_wr_code_page’ with 0 Data in Length Parameter Field
4. Problem to program a hex file less than 16 bytes
5. Unexpected echo after start application command
10
Version Number
1.0.4
1.2.0 (Current)
When the bootloader receives the command ’Start Application’ (LJMP 0), the CAN is not stopped.
Workaround
The application must have in its setup function a reset of CAN macro.
When an application call ’__api_start_bootloader’ or’__api_start_isp’ routines while the watchdog is enabled, when the
watchdog overflow it will restart the application instead of the bootloader
Workaround
Set BLJB(=0) before calling the ‘__api_start_bootloader’ or ‘__api_start_isp’ if the watchdog is used.
When the Flash API ’__api_wr_code_page’ is called with the field ‘nb_data’ equals 0 then 255 data are written in Flash.
Workaround
Include a test on ‘nb_data’ before executing ‘__api_wr_code_page’ routine.
When we try to program a hex file with a size size less than 16 bytes, some troubles appear depending of the start
address.
Workaround
Program with a range address higher than 16 bytes.
When the command start application (with reset) is received by the CAN bootloader; the bootloader answers with a
ramdom CAN frame before starting the application.
Workaround
The FLIP software is not impacted by this CAN frame.
mov CANGCON, #00h
T89C51CC01 Errata Sheet
Errata List
1, 2, 3, 4, 5, 6
2, 7
4131J–CAN–05/06