MC68HC908BD48IFB Freescale Semiconductor, MC68HC908BD48IFB Datasheet - Page 238

• 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
17.4.3 Port B Options
Data Sheet
238
DDRB Bit
Notes:
1. X = Don’t care
2. Hi-Z = High impedance
3. Writing affects data register, but does not affect input.
0
1
PTB Bit
X
X
(1)
Address:
When bit DDRBx is a logic 1, reading address $0001 reads the PTBx
data latch. When bit 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.
the operation of the port B pins.
The PWM control register 1 (PWMCR1) selects the port B pins for PWM
function or as standard I/O function. See
Registers 1 and 2
PWM7E–PWM0E — PWM Output Enable 7–0
Reset:
Read:
Write:
Setting a bit to "1" will configure the corresponding PTBx/PWMx pin
for PWM output function. Reset clears these bits.
I/O Pin Mode
Input, Hi-Z
1 = PTBx/PWMx pin configured as PWMx output pin
0 = PTBx/PWMx pin configured as standard I/O pin
Output
Table 17-4. Port B Pin Functions
PWM7E
$0028
Bit 7
Figure 17-8. PWM Control Register 1 (PWMCR1)
0
(2)
Input/Output (I/O) Ports
PWM6E
6
0
(PWMCR1:PWMCR2).
DDRB7–DDRB0
DDRB7–DDRB0
Read/Write
Accesses
to DDRB
PWM5E
5
0
PWM4E
4
0
PWM3E
PTB7–PTB0
11.4.2 PWM Control
3
0
Read
Pin
Table 17-4
MC68HC908BD48
Accesses to PTB
PWM2E
Freescale Semiconductor
2
0
PTB7–PTB0
PWM1E
PTB7–PTB0
summarizes
1
0
Write
—
PWM0E
Rev. 2.1
Bit 0
(3)
0