NO:
W90P710 Programming Guide
VERSION:
2.1
PAGE:
22
The above information is the exclusive intellectual property of Winbond Electronics and shall not be disclosed,
distributed or reproduced without permission from Winbond.
Table No.: 1200-0003-07-A
1.1.14 GPIO
•
71 programmable I/O ports
•
Pins individually configurable to input, output, or I/O mode for dedicated signals
•
I/O ports Configurable for Multiple functions
1.1.15 Real
Time
Clock
•
Time counter (second, minute, hour) and calendar counter (day, month, year)
•
Alarm register (second, minute, hour, day, month, year)
•
12 or 24-hour mode selectable
•
Recognize leap year automatically
•
Day of the week counter
•
Frequency compensate register (FCR)
•
Beside FCR, all clock and alarm data expressed in BCD code
•
Support tick time interrupt
1.1.16
Smart Card Host Interface
•
ISO-7816 compliant
•
PC/SC T=0, T=1 compliant
•
16-byte transmitter FIFO and 16-byte receiver FIFO
•
FIFO threshold interrupt to optimize system performance
•
Programmable transmission clock frequency
•
Versatile baud rate configuration
•
UART-like register file structure
•
Versatile 8-bit, 16-bit, 24-bit time-out counter for Ansswer To Reset (ATR) and
waiting times processing
•
Parity error counter in reception mode and in transmission mode with automatic
re-transmission
•
Automatic activation and deactivation sequence through an independence
sequencer