MC68HC908GP32CB Freescale Semiconductor, MC68HC908GP32CB Datasheet - Page 123

• Manufacturer Part Number: MC68HC908GP32CB
• Description: IC MCU 32K FLASH 8MHZ 42-SDIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GP32CB

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 33
• Program Memory Size: 32KB (32K 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 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 42-DIP (0.600", 15.24mm)
• For Use With: M68EVB908GP32 - BOARD EVALUATION FOR HC908GP32
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Figure 12-11
When bit DDRCx is a logic 1, reading address $0002 reads the PTCx data latch. When bit 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.
Freescale Semiconductor
PTCPUE Bit
Notes:
1. X = Don’t care
2. Hi-Z = High impedance
3. Writing affects data register, but does not affect input.
4. I/O pin pulled up to V
X
1
0
shows the port C I/O logic.
For those devices packaged in a 40-pin dual in-line package and 42-pin
shrink dual in-line package, PTC5 and PTC6 are connected to ground
internally. DDRC5 and DDRC6 should be set to a 0 to configure PTC5 and
PTC6 as inputs.
DDRC Bit
0
0
1
READ DDRC ($0006)
WRITE DDRC ($0006)
WRITE PTC ($0002)
READ PTC ($0002)
PTCPUEx
DD
by internal pullup device.
PTC Bit
X
X
X
(1)
RESET
Table 12-4. Port C Pin Functions
Figure 12-11. Port C I/O Circuit
MC68HC908GP32 Data Sheet, Rev. 10
I/O Pin Mode
V
Input, Hi-Z
Input, V
DD
INTERNAL
PULLUP
DEVICE
Output
DD
Table 12-4
(4)
(2)
NOTE
DDRCx
PTCx
Accesses to DDRC
DDRC6–DDRC0
DDRC6–DDRC0
DDRC6–DDRC0
summarizes the operation of the port C pins.
Read/Write
PTC6–PTC0
Read
Pin
Pin
Accesses to PTC
PTCx
PTC6–PTC0
PTC6–PTC0
PTC6–PTC0
Write
Port C
(3)
(3)
123