mc68hc908bd48 Freescale Semiconductor, Inc, mc68hc908bd48 Datasheet - Page 247

• Manufacturer Part Number: mc68hc908bd48
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

17.7 Port E
17.7.1 Port E Data Register
MC68HC908BD48
Freescale Semiconductor
—
Rev. 2.1
Function:
Alternate
Address:
Port E is a 3-bit special-function port that shares all of its pins with the
sync processor.
The port E data register contains a data latch for each of the three port E
pins.
PTE2–PTE0 — Port E Data Bits
VSYNCO — Vsync Output
HSYNC — Hsync Output
Reset:
Read:
Write:
PTE2–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 PTE2/VSYNCO pin is the Vsync output from the sync processor.
When the VSYNCOE is clear, the PTE2/VSYNCO pin is available for
general-purpose I/O. See
The PTE1/HSYNCO pin is the Hsync output from the sync processor.
When the HSYNCOE is clear, the PTE1/HSYNCO pin is available for
general-purpose I/O. See
$0008
Bit 7
0
Figure 17-16. Port E Data Register (PTE)
Input/Output (I/O) Ports
= Unimplemented
6
0
5
0
17.7.3 Port E
17.7.3 Port E
Unaffected by reset
4
0
3
0
Options.
Options.
VSYNCO HSYNCO
PTE2
2
Input/Output (I/O) Ports
PTE1
1
Data Sheet
SOG or
TCH0
PTE0
Bit 0
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