參數(shù)資料
型號: T48C862x-Rf-TNS
廠商: Atmel Corp.
元件分類: 4位微控制器
英文描述: Microcontroller with UHF ASK/FSK Transmitter
中文描述: 微控制器,帶有超高頻ASK / FSK發(fā)射器
文件頁數(shù): 37/108頁
文件大?。?/td> 1023K
代理商: T48C862X-RF-TNS
37
T48C862-R4 [Preliminary]
4551C–4BMCU–01/04
Table 11.
Port 5 Control Register
Auxiliary Address: "5"hex, First Write Cycle
Code
3 2 1 0
Function
x x 1 1
BP50 in input mode
interrupt disabled
x x 0 1
BP50 in input mode
rising edge interrupt
x x 1 0
BP50 in input mode
falling edge interrupt
x x 0 0
BP50 in output mode
interrupt disabled
1 1 x x
BP51 in input mode
interrupt disabled
0 1 x x
BP51 in input mode
rising edge interrupt
1 0 x x
BP51 in input mode
falling edge interrupt
0 0 x x
BP51 in output mode
interrupt disabled
Bi-directional Port 4
The bi-directional Port 4 is a bitwise configurable I/O port and provides the external pins
for the Timer 2, SSI and the voltage monitor input (VMI). As a normal port, it performs in
exactly the same way as bi-directional Port 2 (see Figure 32). Two additional multi-
plexes allow data and port direction control to be passed over to other internal modules
(Timer 2, VM or SSI). The I/O-pins for SC and SD line have an additional mode to
generate an SSI-interrupt.
All four Port 4 pins can be individually switched by the P4CR register. Figure 32 shows
the internal interfaces to bi-directional Port 4.
Figure 32.
Bi-directional Port 4 and Port 6
Second Write Cycle
Code
3 2 1 0
x x 1 1
x x 0 1
x x 1 0
x x 0 0
1 1 x x
0 1 x x
1 0 x x
0 0 x x
Function
BP52 in input mode
interrupt disabled
BP52 in input mode
rising edge interrupt
BP52 in input mode
falling edge interrupt
BP52 in output mode
interrupt disabled
BP53 in input mode
interrupt disabled
BP53 in input mode
rising edge interrupt
BP53 in input mode
falling edge interrupt
BP53 in output mode
interrupt disabled
Master reset
Q
VDD
VDD
BPxy
Configurable
*
*
PxDATy
I/O Bus
D
I/O Bus
I/O Bus
*
*
Switched
pull-up
Switched
pull-down
*
S
PxCRy
S
Q
D
PxMRy
POut
(Direction)
PDir
Intx
*
*
PIn
VDD
Static
pull-up
Static
pull-down
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