MC68HRC908JK3CP Freescale Semiconductor, MC68HRC908JK3CP Datasheet - Page 159
MC68HRC908JK3CP
Manufacturer Part Number
MC68HRC908JK3CP
Description
IC MCU FLASH 8B 8MHZ RC 4K 20DIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC68HC908JK1CDW.pdf
(212 pages)
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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MC68HRC908JK3CP
Manufacturer:
FREECAL
Quantity:
20 000
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12.6.3 Port D Control Register (PDCR)
MC68H(R)C908JL3
Freescale Semiconductor
—
Rev. 1.1
Address:
When DDRDx is a logic 1, reading address $0003 reads the PTDx data
latch. When DDRDx is a logic 0, reading address $0003 reads the
voltage level on the pin. The data latch can always be written, regardless
of the state of its data direction bit.
of the port D pins.
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
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
The SLOWD6 and SLOWD7 bits enable the Slow-edge, open-drain,
high current output (25mA sink) of port pins PTD6 and PTD7
respectively. DDRx bit is not affected by SLOWDx.
The PTDPU6 and PTDPU7 bits enable the 5k pull-up on PTD6 and
PTD7 respectively, regardless the status of DDRDx bit.
Bit
0
1
1 = Slow edge enabled; pin is open-drain output
0 = Slow edge disabled; pin is push-pull
1 = Enable 5k pull-up
0 = Disable 5k pull-up
$000A
Bit 7
0
0
Figure 12-12. Port D Control Register (PDCR)
PTD Bit
X
X
(1)
6
0
0
Table 12-3. Port D Pin Functions
I/O Ports
Input, Hi-Z
I/O Pin
Output
Mode
0
5
0
(2)
Table 12-3
4
0
0
Read/Write
DDRD[7:0]
DDRD[7:0]
Accesses
to DDRA
SLOWD7
3
0
summarizes the operation
SLOWD6
2
0
Read
Accesses to PTD
Pin
Pin
PTDPU7
1
0
Technical Data
PTD[7:0]
PTD[7:0]
Write
I/O Ports
PTDPU6
Bit 0
0
157
(3)
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