參數(shù)資料
型號: M44C510D-XXX-DOW
廠商: TEMIC SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 4-BIT, MROM, MICROCONTROLLER
封裝: SSOP-44
文件頁數(shù): 19/60頁
文件大?。?/td> 709K
代理商: M44C510D-XXX-DOW
M44C510E
Rev. A1, 04-May-00
Preliminary Information
26 (60)
Bidir. Port
IN_Enable
Data in
P6CR:
BP60
Bidir. Port
IN_Enable
Data in
BP61
CR0
decode
INT6
INT4
INT2
INT0
INT7
INT5
INT3
INT1
I/O bus
CR7
CR6
0
1
0
1
11
INT6
INT4
INT2
INT0
CR5
CR4
0
1
0
1
11
INT7
INT5
INT3
INT1
CR3
CR2
0
1
0
1
11
Dir.
INT
edge
INT
disabled
Dir.
Edge
Mask
CR1
CR0
out
yes
yes
in
in
no
CR7
CR6
CR5
CR4
CR3
CR2
CR1
96 11526
Figure 22. Port 6 external interrupts
2.2.5
Bidirectional Port 4
The bidirectional Port 4 is both a bitwise 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 per-
forms in exactly the same way as bidirectional Port 5, 7,
A, B and C (see figure 19). Two additional 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). Figure 23 shows the
internal interfaces to Port 4.
Master reset
Q
V
DD
VDD
BP4y
Mask options
*
P4DATy
I/O Bus
D
I/O Bus
*
Pull-up
Pull-down
(Data out)
*
S
13383
P4DDRy
S
Q
D
TCIOy
T0Out
(Direction)
TDir
T0In
V
DD
*
Pull-up
V
DD
Static
Pull-down
Static
30 k
W @ 5 V
Figure 23. Bidirectional Port 4
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