PIC18F25J11-I/PT MICROCHIP [Microchip Technology], PIC18F25J11-I/PT Datasheet - Page 307

• Manufacturer Part Number: PIC18F25J11-I/PT
• Description: 28/44-Pin, Low-Power, High-Performance Microcontrollers with nanoWatt XLP Technology
• Manufacturer: MICROCHIP [Microchip Technology]

18.5.7.1
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.
FIGURE 18-19:
TABLE 18-3:
© 2009 Microchip Technology Inc.
Note 1:
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 and Module
Interdependence
2
C interface does not conform to the 400 kHz I
I
2
C™ CLOCK RATE w/BRG
BAUD RATE GENERATOR BLOCK DIAGRAM
SSPM<3:0>
10 MHz
10 MHz
10 MHz
SCLx
4 MHz
4 MHz
4 MHz
1 MHz
1 MHz
1 MHz
F
2
C Master mode at
CY
SSPM<3:0>
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
PIC18F46J11 FAMILY
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
0Ch
18h
1Fh
63h
09h
27h
02h
09h
00h
F
OSC
/4
(2 Rollovers of BRG)
DS39932C-page 307
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)