UPSD3433E-40T6 STMicroelectronics, UPSD3433E-40T6 Datasheet - Page 181

• Manufacturer Part Number: UPSD3433E-40T6
• Description: MCU 8BIT 8032 128KB FLASH 52TQFP
• Manufacturer: STMicroelectronics
• Series: µPSDr

Specifications of UPSD3433E-40T6

• Core Processor: 8032
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, IrDA, SPI, UART/USART, USB
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 35
• Program Memory Size: 160KB (160K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 52-TQFP, 52-VQFP
• For Use With: 497-5518 - EVAL BOARD RFID READER
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: 497-4906

UPSD3422, UPSD3433, UPSD3434, UPSD3454
27
27.1
Programmable counter array (PCA) with PWM
There are two Programmable Counter Array blocks (PCA0 and PCA1) in the UPSD34xx. A
PCA block consists of a 16-bit up-counter, which is shared by three TCM (Timer Counter
Module). A TCM can be programmed to perform one of the following four functions:
1.
2.
3.
4.
PCA block
The 16-bit Up-Counter in the PCA block is a free-running counter (except in PWM Mode
with programmable frequency). The Counter has a choice of clock input: from an external
pin, Timer 0 Overflow, or PCA Clock.
A PCA block has 3 Timer Counter Modules (TCM) which share the 16-bit Counter output.
The TCM can be configured to capture or compare counter value, generate a toggling
output, or PWM functions. Except for the PWM function, the other TCM functions can
generate an interrupt when an event occurs.
Every TCM is connected to a port pin in Port 4; the TCM pin can be configured as an event
input, a PWMs, a Toggle Output, or as External Clock Input. The pins are general I/O pins
when not assigned to the TCM.
The TCM operation is configured by Control registers and Capture/Compare registers.
Table 143 on page 182
Figure 57. PCA0 block diagram
(from CPU)
Idle mode
PCAIDLE
PCA0CLK
Capture Mode: capture counter values by external input signals
Timer Mode
Toggle Output Mode
PWM Mode: fixed frequency (8-bit or 16-bit), programmable frequency (8-bit only)
EN_PCA
EN_ALL
P4.3/ECI
overflow
Timer0
CLKSEL1
CLKSEL0
lists the SFR registers in the PCA blocks.
Clear counter
16-bit up timer/counter
PCACH0
8-bit
Programmable counter array (PCA) with PWM
PCACL0
8-bit
OVF0
PWM Freq
compare
TCM0
TCM1
TCM2
EOVFI
INT
P4.0/CEX0
P4.1/CEX1
P4.2/CEX2
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