MC68HC908AB32CFU Freescale Semiconductor, MC68HC908AB32CFU Datasheet - Page 322

• Manufacturer Part Number: MC68HC908AB32CFU
• Description: IC MCU 8MHZ 32K FLASH 64-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908AB32CFU

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: POR, PWM
• Number Of I /o: 51
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Input/Output (I/O) Ports
Technical Data
322
When DDRCx is a logic 1, reading address $0002 reads the PTCx data
latch. When DDRCx is a logic 0, reading address $0002 reads the
voltage level on the pin. The data latch can always be written, regardless
of the state of its data direction bit.
Table 17-4
Notes:
1. X = don’t care; except PTC2.
2. Hi-Z = high impedance.
3. Writing affects data register, but does not affect input.
DDRC
Bit
0
1
0
1
READ DDRC ($0006)
WRITE DDRC ($0006)
WRITE PTC ($0002)
READ PTC ($0002)
PTC Bit
X
summarizes the operation of the port C pins.
X
2
2
(1)
Input/Output (I/O) Ports
Table 17-4. Port C Pin Functions
Input, Hi-Z
I/O Pin Mode
Figure 17-10. Port C I/O Circuit
Input, Hi-Z
RESET
Output
Output
(2)
Accesses to DDRC
DDRCx
PTCx
DDRC[5:0]
DDRC[5:0]
Read/Write
DDRC7
DDRC7
MCLK
MC68HC908AB32
Freescale Semiconductor
PTC[5:0]
Read
Pin
Pin
Accesses to PTC
0
MCLKEN
PTC[5:0]
PTC[5:0]
—
PTC2 ONLY
PTC2
Write
—
Rev. 1.1
PTCx
(3)