ST7DALI
PIN DESCRIPTION (Cont’d)
Legend / Abbreviations for Table 1:
Type:
I = input, O = output, S = supply
In/Output level: CT= CMOS 0.3VDD/0.7VDD with input trigger
Output level: HS = 20mA high sink (on N-buffer only)
Port and control configuration:
– Input:
float = floating, wpu = weak pull-up, int = interrupt, ana = analog
– Output: OD = open drain, PP = push-pull
The RESET configuration of each pin is shown in bold which is valid as long as the device is in reset state.
Table 1. Device Pin Description
Pin
No.
Pin Name
Level
Port / Control
Main
Input
Output Function
(after reset)
Alternate Function
1 VSS
2 VDD
3 RESET
S
S
I/O CT
4
PB0/AIN0/SS/
BLEXT
I/O CT
5
PB1/AIN1/SCK/
CGEXT
I/O
CT
6 PB2/AIN2/MISO I/O CT
7
PB3/AIN3/MOSI/
STC_ON
I/O
CT
8 PB4/AIN4/CLKIN I/O CT
9 PB5/AIN5
I/O CT
10 PB6/AIN6/DALIIN I/O CT
X
X
ei3
X
X
X
X ei2
X
X
Ground
Main power supply
X
Top priority non maskable interrupt (active
low)
X X X Port B0
ADC Analog Input 0 or SPI
Slave Select (active low)/
EEPROM external bitline
Caution: No negative current
injection allowed on this pin.
For details, refer to section
13.2.2 on page 101
X X X Port B1
ADC Analog Input 1 or SPI Se-
rial Clock /
EEPROM external control
gate
Caution: No negative current
injection allowed on this pin.
For details, refer to section
13.2.2 on page 101
X X X Port B2
ADC Analog Input 2 or SPI
Master In/ Slave Out Data
X X X Port B3
ADC Analog Input 3 or SPI
Master Out / Slave In Data/
Serial Test Contoller Enable
X X X Port B4
ADC Analog Input 4 or Exter-
nal clock input
X X X Port B5 ADC Analog Input 5
X X X Port B6
ADC Analog Input 6 or DALI
Input
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