ATAM894X-TNQY ATMEL [ATMEL Corporation], ATAM894X-TNQY Datasheet - Page 28

• Manufacturer Part Number: ATAM894X-TNQY
• Description: 8k-flash Microcontroller
• Manufacturer: ATMEL [ATMEL Corporation]

6.2.3.1
6.2.3.2
Table 6-3.
6.2.4
28
Auxiliary Address: '5'hex First Write Cycle
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
Code
ATAM894
Function
BP50 in input mode – interrupt disabled
BP50 in input mode – rising edge interrupt
BP50 in input mode – falling edge interrupt
BP50 in output mode – interrupt disabled
BP51 in input mode – interrupt disabled
BP51 in input mode – rising edge interrupt
BP51 in input mode – falling edge interrupt
BP51 in output mode – interrupt disabled
Bi-directional Port 4
Port 5 Data Register (P5DAT)
Port 5 Control Register (P5CR) Byte Write
Port 5 Control Register
P5xM2, P5xM1 – Port 5x Interrupt Mode/Direction Code
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
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.
shows the internal interfaces to bi-directional Port 4.
P5DAT
P5CR
First write cycle
Second write
cycle
Bit 3
P5DAT3
Bit 2
P5DAT2
Bit 3
P51M2
Bit 7
P53M2
Second Write Cycle
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
Code
Figure 6-3 on page
Bit 2
P51M1
Bit 6
P53M1
Bit 1
P5DAT1
BP52 in output mode – interrupt disabled
Function
BP52 in input mode – interrupt disabled
BP52 in input mode – rising edge interrupt
BP52 in input mode – falling edge interrupt
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
Bit 1
P50M2
Bit 5
P52M2
Primary register address: '5'hex
Bit 0
P5DAT0
26). Two additional multiplexes allow
Auxiliary register address: '5'hex
Bit 0
P50M1
Bit 4
P52M1
Reset value: 1111b
Reset value: 1111b
Reset value: 1111b
Figure 6-6 on page 29
4679D–4BMCU–05/05