MC908LJ12CFBE Freescale Semiconductor, MC908LJ12CFBE Datasheet - Page 344

• 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

Input/Output (I/O) Ports
17.3 Port A
17.3.1 Port A Data Register (PTA)
Technical Data
344
Alternative Function:
Address:
Port A is an 8-bit special function port that shares four of its port pins with
the analog-to-digital converter (ADC) module and four of its port pins
with the keyboard interrupt module (KBI).
The port A data register contains a data latch for each of the eight port A
pins.
PTA[7:0] — Port A Data Bits
KBI[3:0] — Keyboard interrupt channels 0 to 3
Reset:
Read:
Write:
These read/write bits are software programmable. Data direction of
each port A pin is under the control of the corresponding bit in data
direction register A. Reset has no effect on port A data.
KBI[3:0] are input pins to the keyboard interrupt module. The
corresponding control bits, KBIE[3:0], in the keyboard interrupt enable
register, KBIER, select which port pins will be used as a keyboard
interrupt input and overrides any control from the port I/O logic. See
Section 19. Keyboard Interrupt Module
$0000
ADC3
PTA7
Bit 7
Figure 17-2. Port A Data Register (PTA)
Input/Output (I/O) Ports
ADC2
PTA6
6
PTA5
ADC1
5
Unaffected by Reset
ADC0
PTA4
4
PTA3
KBI3
3
(KBI).
MC68HC908LJ12
PTA2
KBI2
Freescale Semiconductor
2
PTA1
KBI1
1
—
Rev. 2.1
PTA0
KBI0
Bit 0