參數(shù)資料
型號(hào): T48C893-TKQ
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: The multiple times programmable (MTP) version for the MARC4 ROM types
中文描述: 4-BIT, FLASH, 4 MHz, MICROCONTROLLER, PDSO20
封裝: SSO-20
文件頁(yè)數(shù): 28/82頁(yè)
文件大小: 638K
代理商: T48C893-TKQ
T48C893
Rev. A4, 22-Jan-02
28 (82)
Auxiliary Address:
4
hex First Write Cycle
3 2 1 0
x x 1 1
BP40 in input mode
x x 1 0
BP40 in output mode
Second Write Cycle
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1 1 x x
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edge interrupt input for INT3)
BP41 in intput mode
BP41 enable alternate function (VMI for
voltage monitor input)
BP41 enable alternate function (T2I exter-
nal clock input for Timer 2)
x x 1 1
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1 0 x x
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3 2 1 0
BP42 in input mode
BP43 in output mode
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x x 1 0
BP42 in output mode
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0 1 x x
BP43 enable alternate function (SD for SSI)
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4.2.5
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
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Bit 3
P6DAT3
Bit 2
Bit 1
Bit 0
P6DAT0
P6DAT
Reset value: 1xx1b
Port 6 Control Register (P6CR)
Auxiliary register address:
6
hex
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P6xM2, P6xM1
Port 6x Interrupt mode/direction code
Auxiliary Address:
6
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x x 0 x
0 x x x
BP60 enable alternate port function (T3O for
Timer 3)
BP63 enable alternate port function (T3I for
Timer 3)
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