MC908QC16CDZE Freescale Semiconductor, MC908QC16CDZE Datasheet - Page 116

• Manufacturer Part Number: MC908QC16CDZE
• Description: IC MCU 8BIT 16K FLASH 28-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908QC16CDZE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 24
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (7.5mm Width)
• Processor Series: HC08QC
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: ESCI/SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 26
• Number Of Timers: 6
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: FSICEBASE, M68CBL05AE, DEMO908QB8, DEMO908QC16
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10-ch x 10-bit
• For Use With: DEMO908QC16 - BOARD DEMO FOR MC908QC16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Input/Output Ports (PORTS)
11.6.3 Port D Input Pullup Enable Register
The port D input pullup enable register (PTDPUE) contains a software configurable pullup device for each
of the eight port D pins. Each bit is individually configurable and requires the corresponding data direction
register, DDRDx, be configured as input. Each pullup device is automatically and dynamically disabled
when its corresponding DDRDx bit is configured as output.
PTDPUE[7:0] — Port D Input Pullup Enable Bits
116
Table 11-4
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 impedance
PTDPUE
These read/write bits are software programmable to enable pullup devices on port D pins
Bit
X
1
0
1 = Corresponding port D pin configured to have internal pull if its DDRD bit is set to 0
0 = Pullup device is disconnected on the corresponding port D pin regardless of the state of its
DDRD bit.
summarizes the operation of the port D pins.
DDRD
Reset:
Read:
Write:
Bit
0
0
1
DD
MC68HC908QC16 • MC68HC908QC8 • MC68HC908QC4 Data Sheet, Rev. 5
Figure 11-16. Port D Input Pullup Enable Register (PTDPUE)
by internal pullup.
PTDPUE7 PTDPUE6 PTDPUE5 PTDPUE4 PTDPUE3 PTDPUE2 PTDPUE1 PTDPUE0
Bit 7
PTD
X
0
Bit
X
X
(1)
Input, Hi-Z
Input, V
6
0
Table 11-4. Port D Pin Functions
I/O Pin
Output
Mode
DD
(2)
(4)
5
0
Accesses to DDRD
4
0
DDRD7–DDRD0
DDRD7–DDRD0
DDRD7–DDRD0
Read/Write
3
0
2
0
PTD7–PTD0
Read
Pin
Pin
1
0
Accesses to PTD
Freescale Semiconductor
Bit 0
0
PTD7–PTD0
PTD7–PTD0
PTD7–PTD0
Write
(3)
(3)