UPSD3422E-40U6 STMicroelectronics, UPSD3422E-40U6 Datasheet - Page 184

• Manufacturer Part Number: UPSD3422E-40U6
• Description: MCU 8BIT 8032 64KB FLASH 80TQFP
• Manufacturer: STMicroelectronics
• Series: µPSDr

Specifications of UPSD3422E-40U6

• 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: 46
• Program Memory Size: 80KB (80K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K 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: 80-TQFP, 80-VQFP
• For Use With: 497-5577 - BOARD EVAL USB POWER SWITCH497-5518 - EVAL BOARD RFID READER
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: 497-4903

Programmable counter array (PCA) with PWM
27.6
27.7
184/300
Toggle mode
In this mode, the user writes a value to the TCM's CAPCOM registers and enables the
comparator. When there is a match with the Counter output, the output of the TCM pin
toggles. This mode is a simple extension of the Timer Mode.
PWM mode - (x8), fixed frequency
In this mode, one or all the TCM's can be configured to have a fixed frequency PWM output
on the port pins. The PWM frequency depends on when the low byte of the Counter
overflows (modulo 256). The duty cycle of each TCM module can be specified in the
CAPCOMHn register. When the PCA_Counter_L value is equal to or greater than the value
in CAPCOMLn, the PWM output is switched to a high state. When the PCA_Counter_L
register overflows, the content in CAPCOMHn is loaded to CAPCOMLn and a new PWM
pulse starts.
Figure 58. Timer mode
1. m = 0: n = 0, 1, or 2
m = 1: n = 3, 4, or 5
ENABLE
CAPCOMHn
PCACHm
16-bit COMPARATOR
16-bit up Timer/Counter
TCMMODEn
8
8
CAPCOMLn
C
PCACLm
EINTF
EN_FLAG
8
8
E_COMP CAP_PE
D
UPSD3422, UPSD3433, UPSD3434, UPSD3454
MATCH
0
CAP_NE
0
PCASTA
INTFn
MATCH TOGGLE
RESET
WRITE to
CAPCOMHn
WRITE to
CAPCOMLn
1
0
0
PWM1
MATCH_TIMER
INTR
0
PWM0
AI07858
0