T89C5115-SISIM Atmel, T89C5115-SISIM Datasheet - Page 38
T89C5115-SISIM
Manufacturer Part Number
T89C5115-SISIM
Description
IC 8051 MCU FLASH 16K 28PLCC
Manufacturer
Atmel
Series
89Cr
Datasheet
1.T89C5115-RATIM.pdf
(113 pages)
Specifications of T89C5115-SISIM
Core Processor
8051
Core Size
8-Bit
Speed
40MHz
Connectivity
UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
20
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Manufacturer
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Reading the Flash Spaces
User
Extra Row
Hardware Security Byte
38
AT89C5115
Figure 16. Hardware Programming Procedure
The following procedure is used to read the User space:
•
Note:
The following procedure is used to read the Extra Row space and is summarized in
Figure 17:
•
•
•
The following procedure is used to read the Hardware
marized in Figure 17:
•
•
•
Read one byte in Accumulator by executing MOVC A,@A+DPTR with A+DPTR is
the address of the code byte to read.
Map the Extra Row space by writing 02h in FCON register.
Read one byte in Accumulator by executing MOVC A,@A+DPTR with A= 0 &
DPTR= FF80h to FFFFh.
Clear FCON to unmap the Extra Row.
Map the Hardware Security space by writing 04h in FCON register.
Read the byte in Accumulator by executing MOVC A,@A+DPTR with A= 0 &
DPTR= 0000h.
Clear FCON to unmap the Hardware Security Byte.
FCON must be cleared (00h) when not used.
Exec: MOVX @DPTR, A
Save & Disable IT
Programming
Flash Spaces
End Loading
FCON = 0Ch
DPTR = 00h
ACC = Data
Data Load
Restore IT
EA = 0
Security
Launch Programming
End Programming
Save & Disable IT
FCON = A4h
FCON = 54h
FCON = 00h
Clear Mode
Cleared?
RestoreIT
FBusy
Byte and is sum-
EA = 0
4128G–8051–02/08
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