MC68HC908AP8CB Freescale Semiconductor, MC68HC908AP8CB Datasheet - Page 269
MC68HC908AP8CB
Manufacturer Part Number
MC68HC908AP8CB
Description
IC MCU 8K FLASH 8MHZ 42SDIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908AP8CFBE.pdf
(324 pages)
Specifications of MC68HC908AP8CB
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, IRSCI, SCI, SPI
Peripherals
LED, LVD, POR, PWM
Number Of I /o
32
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
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
-
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When DDRCx is a logic 1, reading address $0002 reads the PTCx data latch. When DDRCx is a logic 0,
reading address $0002 reads the voltage level on the pin. The data latch can always be written,
regardless of the state of its data direction bit.
Table 16-4
16.5 Port D
Port D is an 8-bit special function port that shares all of its pins with the keyboard interrupt module.
16.5.1 Port D Data Register (PTD)
The port D data register contains a data latch for each of the eight port D pins.
Freescale Semiconductor
Alternative Function:
summarizes the operation of the port C pins.
1. X = don’t care.
2. Hi-Z = high impedance.
3. Writing affects data register, but does not affect input.
DDRC
Bit
0
1
Address:
Reset:
Read:
Write:
READ DDRC ($0006)
WRITE DDRC ($0006)
WRITE PTC ($0002)
READ PTC ($0002)
PTC Bit
X
X
(1)
$0003
PTD7
KBI7
Bit 7
Figure 16-12. Port D Data Register (PTD)
I/O Pin Mode
Input, Hi-Z
MC68HC908AP Family Data Sheet, Rev. 4
Table 16-4. Port C Pin Functions
RESET
Figure 16-11. Port C I/O Circuit
Output
PTD6
KBI6
6
(2)
PTD5
KBI5
5
Accesses to DDRC
DDRCx
PTCx
Read/Write
DDRC[7:0]
DDRC[7:0]
Unaffected by reset
PTD4
KBI4
4
PTD3
KBI3
3
PTC[7:0]
Read
# PTC0 has schmitt trigger input.
Pin
Accesses to PTC
PTD2
KBI2
2
PTC[7:0]
PTC[7:0]
PTD1
KBI1
Write
1
PTCx
(3)
#
PTD0
KBI0
Bit 0
Port D
267
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