ST7LITE25F2 STMicroelectronics, ST7LITE25F2 Datasheet - Page 51

• Manufacturer Part Number: ST7LITE25F2
• Description: 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI
• Manufacturer: STMicroelectronics

Specifications of ST7LITE25F2

• 8 Kbytes Single Voltage Flash Program Memory With Read-out Protection, In-circuit Programming And In-application Programming (icp And Iap). 10k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55˚C.
• Clock Sources: Internal 1% RC oscillator, crystal/ceramic resonator or external clock
• Five Power Saving Modes: Halt, Active-Halt, Wait and Slow, Auto Wake Up From Halt

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
Table 10. Port Configuration (Standard ports)
Note: On ports where the external interrupt capability is selected using the EISR register, the configura-
tion will be as follows:
Table 11. I/O Port Register Map and Reset Values
floating input
pull-up input
open drain output
push-pull output
Address
(Hex.)
0000h
0001h
0002h
0003h
0004h
0005h
Port A
Port B
Port A
Port B
Port
Port
PADR
Reset Value
PADDR
Reset Value
PAOR
Reset Value
PBDR
Reset Value
PBDDR
Reset Value
PBOR
Reset Value
MODE
Register
Label
PA7:0
PB6:0
PA7:0
PB6:0
Pin name
Pin name
MSB
MSB
MSB
MSB
MSB
MSB
7
1
0
0
1
0
0
DDR
0
0
1
1
OR = 0
OR = 0
floating
floating
floating
floating
6
1
0
1
1
0
0
OR
0
1
0
1
Input
Input
5
1
0
0
1
0
0
pull-up interrupt
pull-up interrupt
Interrupt Ports
Ports where the external interrupt capability is
selected using the EISR register
floating input
pull-up interrupt input
open drain output
push-pull output
OR = 1
OR = 1
pull-up
pull-up
4
1
0
0
1
0
0
MODE
3
1
0
0
1
0
0
open drain
open drain
open drain
open drain
OR = 0
OR = 0
2
1
0
0
1
0
0
Output
Output
1
1
0
0
1
0
0
DDR
0
0
1
1
push-pull
push-pull
push-pull
push-pull
OR = 1
OR = 1
ST7LITE2
LSB
LSB
LSB
LSB
LSB
LSB
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OR
0
1
0
0
1
0
0
0
1
0
1
1