UPSD3212A Datasheet, PDF (40/163 Pages) STMicroelectronics – Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic

uPSD3212A, uPSD3212C, uPSD3212CV
Table 27. Description of the PCON Bits
Bit
Symbol
Function
7
SMOD Double Baud Data Rate Bit UART
6
SMOD1 Double Baud Data Rate Bit 2nd UART
5
LVREN LVR Disable Bit (active High)
4
ADSFINT Enable ADC Interrupt
3
RCLK1^{(1) Received Clock Flag (UART 2)}
2
TCLK1^{(1) Transmit Clock Flag (UART 2)}
1
PD
Activate Power-down Mode (High enable)
0
IDL
Activate Idle Mode (High enable)
Note: 1. See the T2CON register for details of the flag description
I/O PORTS (MCU MODULE)
The MCU Module has five ports: Port0, Port1,
Port2, Port3 and Port 4. (Refer to the PSD Module
section on I/O ports A,B,C and D). Ports P0 and
P2 are dedicated for the external address and data
bus and is not available in the 52-pin package de-
vices.
Port1 - Port3 are the same as in the standard 8032
micro-controllers, with the exception of the addi-
tional special peripheral functions (see Table 28).
All ports are bi-directional. Pins of which the alter-
native function is not used may be used as normal
bi-directional I/O.
The use of Port1- Port4 pins as alternative func-
tions are carried out automatically by the
uPSD321x Devices provided the associated SFR
Bit is set HIGH.
Table 28. I/O Port Functions
Port Name
Port 1
Port 3
Port 4
Main Function
GPIO
GPIO
GPIO
Alternate
Timer 2 - Bits 0,1
2nd UART - Bits 2,3
ADC - Bits 4..7
UART - Bits 0,1
Interrupt - Bits 2,3
Timers - Bits 4,5
I²C - Bits 6,7
PWM - Bits 3..7
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