MC908LJ12CFBE Freescale Semiconductor, MC908LJ12CFBE Datasheet - Page 183

• Manufacturer Part Number: MC908LJ12CFBE
• Description: IC MCU 12K FLASH 8MHZ 52-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908LJ12CFBE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: IRSCI, SPI
• Peripherals: LCD, LVD, POR, PWM
• Number Of I /o: 20
• Program Memory Size: 12KB (12K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 52-LQFP
• Processor Series: HC08LJ
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: SCI/SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 4
• Operating Supply Voltage: 3.3 V, 5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: FSICEBASE, M68EML08LJLKE, ZK-HC08LX-A, M68CBL05CE
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 6-ch x 10-bit
• Controller Family/series: HC08
• No. Of I/o's: 20
• Ram Memory Size: 512Byte
• Cpu Speed: 8MHz
• No. Of Timers: 2
• Embedded Interface Type: SCI, SPI
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

10.6.8 EE_READ
MC68HC908LJ12
Freescale Semiconductor
—
Rev. 2.1
EE_READ is used to load the data array in RAM with a set of data from
FLASH.
The EE_READ routine reads data stored by the EE_WRITE routine. An
EE_READ call will retrieve the last data written to a FLASH page and
loaded into the data array in RAM. Same as EE_WRITE, the data size
indicated by DATASIZE is 2 to 15, and the start address
ADDRH:ADDRL must the FLASH page boundary address.
The coding example below uses the data stored by the EE_WRITE
coding example (see
stored in the $EF00–$EE7F page to the data array in RAM. The
initialization subroutine is the same as the coding example for
EE_WRITE (see
EE_READ
MAIN:
Notes:
Routine Name
Routine Description
Calling Address
Stack Used
Data Block Format
1. The start address must be a page boundary start address, e.g. $xx00 or $xx80.
BSR
:
:
LDHX
JSR
:
Monitor ROM (MON)
EQU
INITIALIZATION
FILE_PTR
EE_READ
10.6.7
Table 10-18. EE_READ Routine
EE_READ
Emulated EEPROM read. Data size ranges from 2 to 15
bytes at a time.
$FC03
15 bytes
Bus speed (BUS_SPD)
Data size (DATASIZE)
Starting address (ADDRH)
Starting address (ADDRL)
Data 1
Data N
10.6.7
:
EE_WRITE).
$FC03
EE_WRITE). It loads the 15-byte data set
(1)
(1)
Monitor ROM (MON)
Technical Data
183