MC68HC908BD48IFB Freescale Semiconductor, MC68HC908BD48IFB Datasheet - Page 236

• Manufacturer Part Number: MC68HC908BD48IFB
• Description: IC MCU 48K FLASH 6MHZ USB 44PQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908BD48IFB

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 6MHz
• Connectivity: I²C, USB
• Peripherals: POR, PWM
• Number Of I /o: 32
• Program Memory Size: 48KB (48K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 6x8b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 44-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Input/Output (I/O) Ports
17.4 Port B
17.4.1 Port B Data Register
Data Sheet
236
Function:
Address:
Alternate
Port B is an 8-bit special-function port that shares all eight of its pins with
the pulse width modulator (PWM).
The port B data register (PTB) contains a data latch for each of the eight
port pins.
PTB7–PTB0 — Port B Data Bits
PWM7–PWM0 — PWM Outputs 7–0
Reset:
Read:
Write:
These read/write bits are software-programmable. Data direction of
each port B pin is under the control of the corresponding bit in data
direction register B. Reset has no effect on port B data.
The PWM output enable bits PWM7E–PWM0E, in PWM control
register 1 (PWMCR1) enable port B pins as PWM output pins. (See
17.4.3 Port B
PWM7
$0001
PTB7
Bit 7
Figure 17-5. Port B Data Register (PTB)
Input/Output (I/O) Ports
PWM6
PTB6
Options.)
6
PWM5
PTB5
5
Unaffected by reset
PWM4
PTB4
4
PWM3
PTB3
3
MC68HC908BD48
PWM2
PTB2
Freescale Semiconductor
2
PWM1
PTB1
1
—
Rev. 2.1
PWM0
PTB0
Bit 0