ST7-STICK45 STMICROELECTRONICS [STMicroelectronics], ST7-STICK45 Datasheet - Page 44

• Manufacturer Part Number: ST7-STICK45
• Description: 8-bit microcontroller with single voltage Flash memory, data EEPROM, ADC, timers, SPI
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

ST7LITE0xY0, ST7LITESxY0
I/O PORTS (Cont’d)
Figure 29. I/O Port General Block Diagram
Table 9. I/O Port Mode Options
Legend: NI - not implemented
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1
Input
Output
REGISTER
ACCESS
INTERRUPT
SOURCE (ei
EXTERNAL
Off - implemented not activated
On - implemented and activated
DDR SEL
OR SEL
DR SEL
Floating with/without Interrupt
Pull-up with/without Interrupt
Push-pull
Open Drain (logic level)
Configuration Mode
DDR
x
DR
OR
)
POLARITY
SELECTION
ALTERNATE
OUTPUT
ALTERNATE
ENABLE
If implemented
1
0
FROM
OTHER
BITS
1
0
Pull-Up
Off
On
Off
N-BUFFER
PULL-UP
CONDITION
P-Buffer
Off
On
Off
SCHMITT
TRIGGER
CMOS
V
DD
to V
On
DD
P-BUFFER
(see table below)
V
Diodes
DD
DIODES
(see table below)
PULL-UP
(see table below)
ALTERNATE
ANALOG
INPUT
to V
INPUT
PAD
On
SS