PIC18F86J50T-I/PT Microchip Technology, PIC18F86J50T-I/PT Datasheet - Page 265

• Manufacturer Part Number: PIC18F86J50T-I/PT
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,TQFP,64PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F86J50T-I/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 65
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Ram Size: 3.8K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TFQFP
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 3904 B
• Interface Type: I2C, MSSP, SPI, EUSART
• Maximum Clock Frequency: 48 MHz
• Number Of Programmable I/os: 65
• Number Of Timers: 5
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DV164136, DM183022, DM183032
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 12 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC162087 - HEADER MPLAB ICD2 18F87J50 68/84MA180021 - MODULE PLUG-IN 18F87J50 FS USBAC164328 - MODULE SKT FOR 80TQFP
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: PIC18F86J50T-I/PTTR

19.4.7
In I
reload value is placed in the lower 7 bits of the
SSPxADD register (Figure 19-19). When a write
occurs to SSPxBUF, the Baud Rate Generator will
automatically begin counting. The BRG counts down to
0 and stops until another reload has taken place. The
BRG count is decremented twice per instruction cycle
(T
BRG is reloaded automatically.
Once the given operation is complete (i.e., transmis-
sion of the last data bit is followed by ACK), the internal
clock will automatically stop counting and the SCLx pin
will remain in its last state.
Table 19-3 demonstrates clock rates based on
instruction cycles and the BRG value loaded into
SSPxADD.
FIGURE 19-19:
TABLE 19-3:
© 2009 Microchip Technology Inc.
Note 1:
CY
2
C Master mode, the Baud Rate Generator (BRG)
) on the Q2 and Q4 clocks. In I
40 MHz
40 MHz
40 MHz
16 MHz
16 MHz
16 MHz
4 MHz
4 MHz
4 MHz
F
OSC
The I
100 kHz) in all details, but may be used with care where higher rates are required by the application.
BAUD RATE
2
C interface does not conform to the 400 kHz I
I
2
C™ CLOCK RATE w/BRG
SSPM3:SSPM0
BAUD RATE GENERATOR BLOCK DIAGRAM
10 MHz
10 MHz
10 MHz
SCLx
4 MHz
4 MHz
4 MHz
1 MHz
1 MHz
1 MHz
F
2
CY
C Master mode, the
SSPM3:SSPM0
Reload
Control
CLKO
20 MHz
20 MHz
20 MHz
F
8 MHz
8 MHz
8 MHz
2 MHz
2 MHz
2 MHz
CY
* 2
Reload
PIC18F87J50 FAMILY
19.4.7.1
Because MSSP1 and MSSP2 are independent, they
can operate simultaneously in I
different baud rates. This is done by using different
BRG reload values for each module.
Because this mode derives its basic clock source from
the system clock, any changes to the clock will affect
both modules in the same proportion. It may be
possible to change one or both baud rates back to a
previous value by changing the BRG reload value.
2
BRG Down Counter
C specification (which applies to rates greater than
SSPxADD<6:0>
BRG Value
Baud Rate and Module
Interdependence
0Ch
18h
1Fh
63h
09h
27h
02h
09h
00h
F
OSC
/4
(2 Rollovers of BRG)
2
C Master mode at
DS39775C-page 265
400 kHz
400 kHz
333 kHz
312.5 kHz
1 MHz
100 kHz
308 kHz
100 kHz
100 kHz
F
SCL
(1)
(1)
(1)
(1)