参数资料
型号: ATAM893T-TKQ
厂商: Atmel
文件页数: 22/98页
文件大小: 0K
描述: IC MON TIRE-PRESS ATARX9X SER
标准包装: 4,000
系列: MARC4
核心处理器: MARC4
芯体尺寸: 4-位
速度: 4MHz
连通性: SSI(2 线,3 线)
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 16
程序存储器容量: 4KB(4K x 8)
程序存储器类型: EEPROM
EEPROM 大小: 64 x 16
RAM 容量: 256 x 4
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 6.5 V
振荡器型: 内部
工作温度: -40°C ~ 125°C
封装/外壳: 20-SOIC(0.209",5.30mm 宽)
包装: 带卷 (TR)
29
4680C–4BMCU–01/05
ATAM893-D
5.2.4
Bi-directional Port 4
The bi-directional Port 4 is a bit-wise 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 5-6). Two additional multiplexes allow data and
port direction control to be passed over to other internal modules (Timer 2, VM or SSI). The I/O
pins for the SC and SD lines have an additional mode to generate an SSI-interrupt.
All four Port 4 pins can be individually switched by the P4CR register. Figure 5-6 shows the inter-
nal interfaces to bi-directional Port 4.
Figure 5-6.
Bi-directional Port 4 and Port 6
Table 5-3.
Port 5 Control Register
Auxiliary Address: '5'hex First Write Cycle
Second Write Cycle
Code
3 2 1 0
Function
Code
3 2 1 0
Function
x x 1 1
BP50 in input mode – interrupt disabled
x x 1 1
BP52 in input mode – interrupt disabled
x x 0 1
BP50 in input mode – rising edge interrupt
x x 0 1
BP52 in input mode – rising edge interrupt
x x 1 0
BP50 in input mode – falling edge interrupt
x x 1 0
BP52 in input mode – falling edge interrupt
x x 0 0
BP50 in output mode – interrupt disabled
x x 0 0
BP52 in output mode – interrupt disabled
1 1 x x
BP51 in input mode – interrupt disabled
1 1 x x
BP53 in input mode – interrupt disabled
0 1 x x
BP51 in input mode – rising edge interrupt
0 1 x x
BP53 in input mode – rising edge interrupt
1 0 x x
BP51 in input mode – falling edge interrupt
1 0 x x
BP53 in input mode – falling edge interrupt
0 0 x x
BP51 in output mode – interrupt disabled
0 0 x x
BP53 in output mode – interrupt disabled
Master reset
Q
V
DD
BPxy
(1) Flash options
PxDATy
I/O Bus
D
I/O Bus
Switched
pull-up
Switched
pull-down
S
PxCRy
S
Q
D
PxMRy
POut
(Direction)
PDir
Intx
(1)
PIn
Static
pull-up
Static
pull-down
V
DD
V
DD
(1)
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