UPSD3422E-40U6 STMicroelectronics, UPSD3422E-40U6 Datasheet - Page 185

• 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

UPSD3422, UPSD3433, UPSD3434, UPSD3454
27.8
Note:
Figure 59. PWM mode - (x8), fixed frequency
1. m = 0: n = 0, 1, or 2
PWM mode - (x8), programmable frequency
In this mode, the PWM frequency is not determined by the overflow of the low byte of the
Counter. Instead, the frequency is determined by the PWMFm register. The user can load a
value in the PWMFm register, which is then compared to the low byte of the Counter. If there
is a match, the Counter is cleared and the Load registers (PWMFm, CAPCOMHn) are re-
loaded for the next PWM pulse. There is only one PWMFm register which serves all 3 TCM
in a PCA block.
If one of the TCM modules is operating in this mode, the other modules in the PCA must be
configured to the same mode or left not to be used. The duty cycle of the PWM can be
specified in the CAPCOMHn register as in the PWM with fixed frequency mode. Different
TCM modules can have their own duty cycle.
The value in the frequency register (PWMFm) must be larger than the duty cycle register
(CAPCOM).
m = 1: n = 3, 4, or 5
OVERFLOW
ENABLE
TCMMODEn
8-bit COMPARATORn
CAPCOMHn
CAPCOMLn
PCACLm
EINTF
0
8
8
E_COMP CAP_PE
Programmable counter array (PCA) with PWM
MATCH
0
CAP_NE
S
R
0
SET
CLR
MATCH TOGGLE
Q
Q
0
0
PWM1
PWM0
CEXn
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