PIC18F2331-E/MM Microchip Technology, PIC18F2331-E/MM Datasheet - Page 140

• Manufacturer Part Number: PIC18F2331-E/MM
• Description: IC MCU FLASH 4KX16 28QFN
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2331-E/MM

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, Power Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-QFN
• Core: PIC
• Processor Series: PIC18F
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 40 MHz
• Data Ram Size: 768 B
• Data Rom Size: 256 B
• On-chip Adc: Yes
• Number Of Programmable I/os: 24
• Number Of Timers: 4
• Operating Supply Voltage: 2 V to 5.5 V
• Mounting Style: SMD/SMT
• A/d Bit Size: 10 bit
• A/d Channels Available: 5
• Height: 0.88 mm
• Interface Type: EUSART, I2C, SPI, SSP
• Length: 6 mm
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Supply Voltage (max): 5.5 V, 5.8 V
• Supply Voltage (min): 3.9 V, 4.2 V
• Width: 6 mm
• For Use With: I3-DB18F4431 - BOARD DAUGHTER ICEPIC3
• Lead Free Status / RoHS Status: Request inventory verification / Request inventory verification
• Other names: PIC18F2331-E/ML; PIC18F2331-E/ML

PIC18F2331/2431/4331/4431
FIGURE 15-1:
15.1
Timer5 combines two 8-bit registers to function as a
16-bit timer. The TMR5L register is the actual low byte
of the timer; it can be read and written to directly. The
high byte is contained in an unmapped register; it is
read and written to through TMR5H, which serves as
a buffer. Each register increments from 00h to FFh.
A second register pair, PR5H and PR5L, serves as the
Period register; it sets the maximum count for the
TMR5 register pair. When TMR5 reaches the value of
PR5, the timer rolls over to 00h and sets the TMR5IF
interrupt flag. A simplified block diagram of the Timer5
module is shown in Figure 2-1.
DS39616D-page 140
Note:
T5CKI
Special Event
Trigger Input
from IC1
Timer5 Reset
(external)
Set TMR5IF
Special Event
Trigger Output
TMR5CS
T5PS<1:0>
T5SYNC
TMR5ON
Timer5 Operation
Capture or Quadrature Encoder Interface).
The Timer5 may be used as a general pur-
pose timer and as the time base resource to
the
Motion
TIMER5 BLOCK DIAGRAM (16-BIT READ/WRITE MODE SHOWN)
Noise
Filter
1
0
Feedback
Clock
Internal
F
OSC
/4
Module
Reset
Special
Logic
1
0
Event
Logic
Timer5 Reset
(Input
Prescaler
1, 2, 4, 8
2
TMR5
PR5
TMR5L
PR5L
Timer5 supports three configurations:
• 16-Bit Synchronous Timer
• 16-Bit Synchronous Counter
• 16-Bit Asynchronous Counter
In Synchronous Timer configuration, the timer is
clocked by the internal device clock. The optional
Timer5 prescaler divides the input by 2, 4, 8 or not at all
(1:1). The TMR5 register pair increments on Q1.
Clearing TMR5CS (= 0) selects the internal device
clock as the timer sampling clock.
Synchronize
Sleep Input
Comparator
Detect
16
16
High Byte
TMR5H
TMR5
PR5H
8
1
0
8
Write TMR5L
Read TMR5L
 2010 Microchip Technology Inc.
8
8
8
8
Timer5
On/Off
Internal Data Bus