MC68HRC908JK3CP Freescale Semiconductor, MC68HRC908JK3CP Datasheet - Page 154

• Manufacturer Part Number: MC68HRC908JK3CP
• Description: IC MCU FLASH 8B 8MHZ RC 4K 20DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HRC908JK3CP

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Peripherals: LED, LVD, POR, PWM
• Number Of I /o: 15
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.3 V
• Data Converters: A/D 12x8b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Connectivity: -

I/O Ports
Technical Data
152
PTAPUE Bit
1. X = Don’t care.
2. I/O pin pulled to V
3. Writing affects data register, but does not affect input.
4. Hi-Z = High Impedence
1
0
X
DDRA
Bit
0
0
1
DD
Address:
PTA6EN — Enable PTA6 on OSC2
PTAPUE[6:0] — Port A Input Pull-up Enable bits
Table 12-1
Reset:
by internal pull-up.
Read:
Write:
PTA Bit
This read/write bit configures the OSC2 pin function when RC
oscillator option is selected. This bit has no effect for X-tal oscillator
option.
These read/write bits are software programmable to enable pull-up
devices on port A pins
Figure 12-5. Port A Input Pull-up Enable Register (PTAPUE)
X
X
X
(1)
1 = OSC2 pin configured for PTA6 I/O, and has all the interrupt and
0 = OSC2 pin outputs the RC oscillator clock (RCCLK)
1 = Corresponding port A pin configured to have internal pull if its
0 = Pull-up device is disconnected on the corresponding port A pin
Table 12-1. Port A Pin Functions
PTA6EN
$000D
Bit 7
pull-up functions.
DDRA bit is set to 0
regardless of the state of its DDRA bit.
0
Input, V
Input, Hi-Z
I/O Pin Mode
summarizes the operation of the port B pins.
Output
PTAPUE
DD
6
6
0
(2)
(4)
I/O Ports
PTAPUE
Accesses to DDRB
DDRA6-DDRA0
DDRA6-DDRA0
DDRA6-DDRA0
5
5
0
Read/Write
PTAPUE
4
4
0
PTAPUE
PTA6-PTA0
3
3
0
Read
Pin
Pin
MC68H(R)C908JL3
Accesses to PTB
PTAPUE
Freescale Semiconductor
2
2
0
PTA6-PTA0
PTA6-PTA0
PTA6-PTA0
PTAPUE
Write
1
2
0
—
(3)
(3)
PTAPUE
Rev. 1.1
Bit 0
0
0