MC908JL16CDWE Freescale Semiconductor, MC908JL16CDWE Datasheet - Page 144

• Manufacturer Part Number: MC908JL16CDWE
• Description: IC MCU 16K FLASH 8MHZ 28-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908JL16CDWE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, SCI
• Peripherals: LED, LVD, POR, PWM
• Number Of I /o: 23
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (7.5mm Width)
• Controller Family/series: HC08
• No. Of I/o's: 23
• Ram Memory Size: 512Byte
• Cpu Speed: 8MHz
• No. Of Timers: 2
• Embedded Interface Type: I2C, SCI
• Rohs Compliant: Yes
• Processor Series: HC08JL
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: SCI
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 23
• Number Of Timers: 4
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: FSICEBASE, DEMO908JL16E, M68CBL05CE
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 12 Channel
• For Use With: DEMO908JL16E - BOARD DEMO FOR MC908JL16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Input/Output (I/O) Ports
When DDRBx is a logic 1, reading address $0001 reads the PTBx data latch. When DDRBx is a logic 0,
reading address $0001 reads the voltage level on the pin. The data latch can always be written,
regardless of the state of its data direction bit.
10.4 Port D
Port D is an 8-bit special function port that shares two of its pins with the serial communications interface
module (see
module (see
module (see
(see
and programmable pull-up. PTD2, PTD3, PTD6 and PTD7 each has LED sink capability.
144
Chapter 8 Multi-Master IIC Interface
DDRB Bit
1. X = don’t care.
2. Hi-Z = high impedance.
3. Writing affects data register, but does not affect the input.
Chapter 6 Timer Interface Module
Chapter 7 Serial Communications Interface
Chapter 9 Analog-to-Digital Converter
Avoid glitches on port B pins by writing to the port B data register before
changing data direction register B bits from 0 to 1.
port B I/O logic.
0
1
READ DDRB ($0005)
WRITE DDRB ($0005)
WRITE PTB ($0001)
READ PTB ($0001)
PTB Bit
X
X
(1)
I/O Pin Mode
RESET
Input, Hi-Z
Table 10-3. Port B Pin Functions
MC68HC908JL16 Data Sheet, Rev. 1.1
Figure 10-9. Port B I/O Circuit
Output
(MMIIC)). PTD6 and PTD7 each has high current sink (25mA)
(2)
Table 10-3
(TIM)), four of its pins with the analog-to-digital converter
NOTE
DDRBX
PTBX
Accesses to DDRB
(ADC)), and two of its pins with the MMIIC module
Read/Write
DDRB[7:0]
DDRB[7:0]
(SCI)), two of its pins with the timer 1 interface
summarizes the operation of the port B pins.
Figure 10-9
TO ANALOG-TO-DIGITAL CONVERTER
PTB[7:0]
Read
Pin
Accesses to PTB
shows the
PTB[7:0]
PTB[7:0]
Freescale Semiconductor
Write
PTBX
(3)