MC68HC908SR12CB Freescale Semiconductor, MC68HC908SR12CB Datasheet - Page 331

• Manufacturer Part Number: MC68HC908SR12CB
• Description: IC MCU 12K FLASH 8MHZ 42-SDIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908SR12CB

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, SCI
• Peripherals: LVD, POR, PWM, Temp Sensor
• Number Of I /o: 29
• Program Memory Size: 12KB (12K 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 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 42-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

18.6 Port D
18.6.1 Port D Data Register (PTD)
MC68HC908SR12•MC68HC08SR12 — Rev. 5.0
Freescale Semiconductor
Alternative Function:
Address:
Port D is an 8-bit special function port that shares all of its pins with the
keyboard interrupt module. See
Module
The port D data register contains a data latch for each of the eight port D
pins.
PTD[7:0] — Port D Data Bits
KBI[7:0] — Keyboard Interrupt Pins
Reset:
Read:
Write:
These read/write bits are software programmable. Data direction of
each port D pin is under the control of the corresponding bit in data
direction register D. Reset has no effect on port D data.
The keyboard interrupt enable bits, KBIE[7:0], in the keyboard
interrupt enable register (KBIER), enable the port D pins as external
interrupt pins. See
$0003
PTD7
(KBI).
KBI7
Bit 7
Figure 18-13. Port D Data Register (PTD)
Input/Output (I/O) Ports
PTD6
KBI6
6
Section 20. Keyboard Interrupt Module
PTD5
KBI5
5
Unaffected by reset
Section 20. Keyboard Interrupt
PTD4
KBI4
4
PTD3
KBI3
3
PTD2
KBI2
2
Input/Output (I/O) Ports
PTD1
KBI1
1
Data Sheet
(KBI).
PTD0
KBI0
Bit 0
Port D
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