JN5148/001,531 NXP Semiconductors, JN5148/001,531 Datasheet - Page 38

• Manufacturer Part Number: JN5148/001,531
• Description: Microcontrollers (MCU) 32bit RISC 2.4GHz
• Manufacturer: NXP Semiconductors

Specifications of JN5148/001,531

• Core: RISC
• Operating Supply Voltage: 2 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-56
• Minimum Operating Temperature: - 40 C
• Lead Free Status / Rohs Status: Details

11 Timers
11.1 Peripheral Timer/Counters
Three general-purpose timer/counter units are available that can be independently configured to operate in one of
five possible modes. Timer 0 and 1 support all 5 modes of operation and Timer 2 supports PWM and Delta-Sigma
modes only. The timers have the following:
38
TIMxCK_GT
TIMxCAP
SYSCLK
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•
•
•
•
•
•
•
•
5-bit prescaler, divides system clock by 2
Clocked from internal system clock (16MHz)
16-bit counter, 16-bit Rise and Fall (period) registers
Timer: can generate interrupts off Rise and Fall counts. Can be gated by external signal
Counter: counts number of transitions on external event signal. Can use low-high, high-low or both
transitions
PWM/Single pulse: outputs repeating Pulse Width Modulation signal or a single pulse. Can set period and
mark-space ratio
Capture: measures times between transitions of an applied signal
Delta-Sigma: Return-To-Zero (RTZ) and Non-Return-to-Zero (NRZ) modes
Timer usage of external IO can be controlled on a pin by pin basis
Select
Edge
Generator
Prescaler
Capture
Capture
Enable
Reset
Gate
Gate
S/w
Reset Generator
Delta-Sigma
Counter
PWM/Δ−Σ
Figure 26: Timer Unit Block Diagram
PWM/Δ−Σ
System
Reset
Rise
Fall
JN-DS-JN5148-001 1v6
Single
Reset
Shot
prescale value
INT
as the clock to the timer (prescaler range is 0 to 16)
Generator
Int Enable
Interrupt
=
=
S
R
© NXP Laboratories UK 2010
PWM/Delta-
Sigma
OE
TIMxOUT