mcf5282 Freescale Semiconductor, Inc, mcf5282 Datasheet - Page 510

• Manufacturer Part Number: mcf5282
• Manufacturer: Freescale Semiconductor, Inc

General Purpose I/O Module
26.3.2
26.3.2.1 Port Output Data Registers (PORTn)
The PORTn registers store the data to be driven on the corresponding port n pins when the pins are
configured for digital output.
Most PORTn registers have a full 8-bit implementation, as shown in
registers use fewer than eight bits. Their bit definitions are shown in
Figure
At reset, all bits in the PORTn registers are set.
Reading a PORTn register returns the current values in the register, not the port n pin values.
PORTn bits can be set by setting the PORTn register, or by setting the corresponding bits in the
PORTnP/SETn register. They can be cleared by clearing the PORTn register, or by clearing the
corresponding bits in the CLRn register.
26-10
26-6.
Address IPSBAR + 0x10_0000 (PORTA), 0x10_0001 (PORTB), 0x10_0002 (PORTC), 0x10_0003 (PORTD),
Address
Address
Reset
Reset
Reset
R/W:
R/W:
R/W:
Field PORTn7
Field
Field
Register Descriptions
0x10_0008 (PORTJ), 0x10_0009 (PORTDD), 0x10_000A (PORTEH), 0x10_000B (PORTEL)
—
0x10_0004 (PORTE), 0x10_0005 (PORTF), 0x10_0006 (PORTG), 0x10_0007 (PORTH),
R
7
7
7
—
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3
R
PORTn6
PORTn6
Figure 26-3. Port Output Data Registers (8-bit)
Figure 26-5. Port Output Data Registers (6-bit)
6
6
6
Figure 26-4. Port Output Data Register (7-bit)
IPSBAR + 0x10_000C (PORTAS), 0x10_000E (PORTSD)
PORTn5
PORTn5
PORTn5
5
5
5
IPSBAR + 0x10_000D (PORTQS)
PORTn4
PORTn4
PORTn4
4
4
4
1111_1111
0011_1111
0011_1111
R/W
PORTn3
PORTn3
PORTn3
R/W
3
3
3
R/W
PORTn2
PORTn2
PORTn2
Figure
2
2
2
Figure
26-3. The remaining PORTn
PORTn1
PORTn1
PORTn1
26-4,
1
1
1
Freescale Semiconductor
Figure
PORTn0
PORTn0
PORTn0
0
0
0
26-5, and