ST7FDALI View Datasheet(PDF) - STMicroelectronics
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ST7FDALI
STMicroelectronics
ST7FDALI Datasheet PDF : 141 Pages
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ST7DALI
I/O PORTS (Cont’d)
10.7 DEVICE-SPECIFIC I/O PORT CONFIGURATION
The I/O port register configurations are summa-
rised as follows.
Standard Ports
PA7:0, PB6:0
MODE
floating input
pull-up input
open drain output
push-pull output
DDR OR
0
0
0
1
1
0
1
1
Interrupt Ports
Ports where the external interrupt capability is
selected using the EISR register
MODE
floating input
pull-up interrupt input
open drain output
push-pull output
DDR OR
0
0
0
1
1
0
1
1
Table 10. Port Configuration (Standard ports)
Port
Port A
Port B
Pin name
PA7:0
PB6:0
OR = 0
floating
floating
Input
OR = 1
pull-up
pull-up
Output
OR = 0
open drain
open drain
OR = 1
push-pull
push-pull
Note: On ports where the external interrupt capability is selected using the EISR register, the configura-
tion will be as follows:
Port
Port A
Port B
Pin name
PA7:0
PB6:0
OR = 0
floating
floating
Input
OR = 1
pull-up interrupt
pull-up interrupt
Output
OR = 0
open drain
open drain
OR = 1
push-pull
push-pull
Table 11. I/O Port Register Map and Reset Values
Address
(Hex.)
Register
Label
7
6
5
4
3
2
1
0
PADR
MSB
LSB
0000h
Reset Value
1
1
1
1
1
1
1
1
PADDR
MSB
LSB
0001h
Reset Value
0
0
0
0
0
0
0
0
PAOR
MSB
LSB
0002h
Reset Value
0
1
0
0
0
0
0
0
PBDR
MSB
LSB
0003h
Reset Value
1
1
1
1
1
1
1
1
PBDDR
MSB
LSB
0004h
Reset Value
0
0
0
0
0
0
0
0
PBOR
MSB
LSB
0005h
Reset Value
0
0
0
0
0
0
0
0
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