MC68HC908GR8CP Freescale Semiconductor, MC68HC908GR8CP Datasheet - Page 225

• Manufacturer Part Number: MC68HC908GR8CP
• Description: IC MCU FLASH 8BIT 8MHZ 4K 28-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GR8CP

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 17
• Program Memory Size: 7.5KB (7.5K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 6x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

16.7 Port E
16.7.1 Port E Data Register
MC68HC908GR8 — Rev 4.0
MOTOROLA
NOTE:
Function:
Alternate
Address:
Port E is a 2-bit special-function port that shares two of its pins with the
serial communications interface (SCI) module.
The port E data register contains a data latch for each of the two port E
pins.
PTE1 and PTE0 — Port E Data Bits
Data direction register E (DDRE) does not affect the data direction of
port E pins that are being used by the SCI module. However, the DDRE
bits always determine whether reading port E returns the states of the
latches or the states of the pins. See
RxD — SCI Receive Data Input
Reset:
Read:
Write:
Freescale Semiconductor, Inc.
PTE1 and PTE0 are read/write, software programmable bits. Data
direction of each port E pin is under the control of the corresponding
bit in data direction register E.
The PTE1/RxD pin is the receive data input for the SCI module. When
the enable SCI bit, ENSCI, is clear, the SCI module is disabled, and
the PTE1/RxD pin is available for general-purpose I/O. See
Communications Interface
For More Information On This Product,
$0008
Bit 7
0
Go to: www.freescale.com
Figure 16-17. Port E Data Register (PTE)
Input/Output Ports (I/O)
= Unimplemented
6
0
5
0
(SCI).
Unaffected by reset
4
0
Table
3
0
16-6.
2
0
Input/Output Ports (I/O)
PTE1
RxD
1
Technical Data
Serial
PTE0
Bit 0
TxD
Port E
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