MC68HC908JL3ECFA Freescale Semiconductor, MC68HC908JL3ECFA Datasheet - Page 112

• Manufacturer Part Number: MC68HC908JL3ECFA
• Description: IC MCU 4K FLASH 8MHZ 48-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908JL3ECFA

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Peripherals: LED, LVD, POR, PWM
• Number Of I /o: 23
• 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: 48-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Connectivity: -

Input/Output (I/O) Ports
10.4.3 Port D Control Register (PDCR)
The port D control register enables/disables the pull-up resistor and slow-edge high current capability of
pins PTD6 and PTD7.
SLOWDx — Slow Edge Enable
PTDPUx — Pull-up Enable
112
The SLOWD6 and SLOWD7 bits enable the Slow-edge, open-drain, high current output (25mA sink)
of port pins PTD6 and PTD7 respectively. DDRDx bit is not affected by SLOWDx.
The PTDPU6 and PTDPU7 bits enable the 5kΩ pull-up on PTD6 and PTD7 respectively, regardless
the status of DDRDx bit.
1 = Slow edge enabled; pin is open-drain output
0 = Slow edge disabled; pin is push-pull
1 = Enable 5kΩ pull-up
0 = Disable 5kΩ pull-up
Address:
1. X = don’t care.
2. Hi-Z = high impedance.
3. Writing affects data register, but does not affect the input.
Reset:
Read:
Write:
DDRD
Bit
0
1
$000A
Bit 7
0
0
PTD Bit
Figure 10-12. Port D Control Register (PDCR)
X
X
= Unimplemented
(1)
MC68HC908JL3E Family Data Sheet, Rev. 4
6
0
0
Table 10-4. Port D Pin Functions
I/O Pin Mode
Input, Hi-Z
Output
5
0
0
(2)
4
0
0
Accesses to
Read/Write
DDRD[7:0]
DDRD[7:0]
DDRD
SLOWD7
3
0
SLOWD6
Read
2
0
Pin
Pin
Accesses to PTD
PTDPU7
1
0
PTD[7:0]
PTD[7:0]
Write
Freescale Semiconductor
PTDPU6
Bit 0
(3)
0