參數資料
型號： M44C892-H
廠商： ATMEL CORP
元件分類： 微控制器/微處理器
英文描述： 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20
封裝： SSO-20
文件頁數： 20/84頁
文件大?。?/td> 648K
代理商： M44C892-H
M44C892–H
M44C892–H
M44C092–H
Rev. A2, 14-Dec-01
27 (84)
Auxiliary Address: ’4’hex
First Write Cycle
Second Write Cycle
Code
3 2 1 0
Function
Code
3 2 1 0
Function
x x 1 1
BP40 in input mode
x x 1 1
BP42 in input mode
x x 1 0
BP40 in output mode
x x 1 0
BP42 in output mode
x x 0 1
BP40 enable alternate function (SC for SSI)
x x 0 x
BP42 enable alternate function (T2O for
Timer 2)
x x 0 0
BP40 enable alternate function (falling
edge interrupt input for INT3)
1 1 x x
BP43 in input mode
1 1 x x
BP41 in intput mode
1 0 x x
BP43 in output mode
1 0 x x
BP41 in output mode
0 1 x x
BP43 enable alternate function (SD for SSI)
0 1 x x
BP41 enable alternate function (VMI for
voltage monitor input)
0 0 x x
BP43 enable alternate function (falling
edge interrupt input for INT3)
0 0 x x
BP41 enable alternate function (T2I exter-
nal clock input for Timer 2)
–––
–––
3.2.5
Bidirectional Port 6
The bidirectional Port 6 is both a bitwise configurable I/O
port and provides the external pins for the Timer 3. As a
normal port, it performs in exactly the same way as
bidirectional Port 6 (see figure 26). Two additional multi-
plexes allow data and port direction control to be passed
over to other internal module (Timer 3). The I/O-pin for
T3I line has an additional mode to generate a Timer 3–in-
terrupt.
All two Port 6 pins can be individually switched by the
P6CR-register . Figure 26 shows the internal interfaces to
bidirectional Port 6.
Port 6 Data Register (P6DAT)
Primary register address: ’6’hex
Bit 3
Bit 2
Bit 1
Bit 0
P6DAT
P6DAT3
– – –
– – –
P6DAT0
Reset value: 1xx1b
Port 6 Control Register (P6CR)
Auxiliary register address: ’6’hex
Bit 3
Bit 2
Bit 1
Bit 0
P6CR
P63M2
P63M1
P60M2
P60M0
Reset value: 1111b
P6xM2, P6xM1 – Port 6x Interrupt mode/direction code
Auxiliary Address: ’6’hex
Write Cycle
Code
3 2 1 0
Function
Code
3 2 1 0
Function
x x 1 1
BP60 in input mode
1 1 x x
BP63 in intput mode
x x 1 0
BP60 in output mode
1 0 x x
BP63 in output mode
x x 0 x
BP60 enable alternate port function (T3O for
Timer 3)
0 x x x
BP63 enable alternate port function (T3I for
Timer 3)
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