ATAM510X-ILQY ATMEL [ATMEL Corporation], ATAM510X-ILQY Datasheet - Page 31

• Manufacturer Part Number: ATAM510X-ILQY
• Description: MARC4 4-bit MTP Universal Microcontroller
• Manufacturer: ATMEL [ATMEL Corporation]

3.2.7
Figure 3-7.
4711B–4BMCU–01/05
Bi-directional Port 4
Bi-directional Port 4
Master reset
TDir
I/O Bus
T0Out
I/O Bus
I/O Bus
T0In
Figure 3-6.
The bi-directional Port 4 is both a bit wise configurable I/O port and provides the external pins for
both the Timer 0 and the internal buzzer generator. As an I/O port, it performs in exactly the
same way as bi-directional Port 5, 7, A, B and C (see
multiplexers allow data and port direction control to be passed over to other internal modules
(Timer 0 or Buzzer). Each of the four Port 4 pins can be individually switched by the
Timer/Counter I/O Register (TCIO).
P4DATy
P4DDRy
D
D
S
S
Q
Q
(Data out)
(Direction)
INT6
INT4
INT2
INT0
INT7
INT5
INT3
INT1
TCIOy
Port 6 External Interrupts
P6CR:
CR7
1
1
0
0
CR7
CR6
decode
1
0
0
1
CR6
INT6
INT4
INT2
INT0
(1)
Flash options
CR5 CR4
decode
CR5
Figure 3-7
0
0
1
1
Mask
Mask
CR4
CR3
0
1
0
1
V
decode
DD
INT7
INT5
INT3
INT1
CR2 CR1
(1)
(1)
Edge
Edge
shows the internal interfaces to Port 4.
decode
CR1
CR3
0
0
1
1
CR0
V
DD
CR0
CR2
Pull-up
(1)
(1)
0
0
1
1
Figure 3-3 on page
Dir.
Dir.
Pull-down
V
I/O bus
Dir.
out
DD
in
in
in
edge
IN_Enable
INT
Data in
IN_Enable
Data in
-
-
Bidir. Port
Bidir. Port
V
DD
(1)
(1)
disabled
yes
INT
yes
no
no
Pull-down
Pull-up
30 k at 5 V
Static
Static
BP4y
26). Two additional
ATAM510
BP61
BP60
31