MC68HC908BD48IFB Freescale Semiconductor, MC68HC908BD48IFB Datasheet - Page 235

• 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: -

17.3.3 Port A Options
MC68HC908BD48
Freescale Semiconductor
PTAPUE Bit
NOTES:
1. X = Don’t care
2. Hi-Z = High impedance
3. Writing affects data register, but does not affect input.
X
0
DDRA Bit
—
Rev. 2.1
0
1
Address:
When bit DDRAx is a logic 1, reading address $0000 reads the PTAx
data latch. When bit DDRAx is a logic 0, reading address $0000 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 A pins.
The PWM control register 2 (PWMCR2) selects the port A pins for PWM
function or as standard I/O function. See
Registers 1 and 2
PWM15E–PWM8E — PWM Output Enable 15–8
Reset:
Read:
Write:
Setting a bit to "1" will configure the corresponding PTAx/PWMx pin
for PWM output function. Reset clears these bits.
PTA Bit
X
1 = PTAx/PWMx pin configured as PWMx output pin
0 = PTAx/PWMx pin configured as standard I/O pin
X
(1)
Table 17-3. Port A Pin Functions
PWM15E PWM14E PWM13E PWM12E PWM11E PWM10E
$0059
Bit 7
Figure 17-4. PWM Control Register 1 (PWMCR1)
0
I/O Pin Mode
Input, Hi-Z
Input/Output (I/O) Ports
Output
6
0
(PWMCR1:PWMCR2).
(2)
5
0
DDRA7–DDRA0
DDRA7–DDRA0
Read/Write
Accesses
to DDRA
4
0
11.4.2 PWM Control
3
0
PTA7–PTA0
Table 17-3
Read
Pin
Accesses to PTA
2
0
Input/Output (I/O) Ports
PWM9E
PTA7–PTA0
summarizes
1
0
PTA7–PTA0
Write
Data Sheet
PWM8E
Bit 0
0
(3)
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