PIC16F84A-20/SS Microchip Technology, PIC16F84A-20/SS Datasheet - Page 307

• Manufacturer Part Number: PIC16F84A-20/SS
• Description: IC MCU FLASH 1KX14 EE 20SSOP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F84A-20/SS

• Core Size: 8-Bit
• Program Memory Size: 1.75KB (1K x 14)
• Core Processor: PIC
• Speed: 20MHz
• Peripherals: POR, WDT
• Number Of I /o: 13
• Program Memory Type: FLASH
• Eeprom Size: 64 x 8
• Ram Size: 68 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 20-SSOP
• Controller Family/series: PIC16F
• No. Of I/o's: 13
• Eeprom Memory Size: 64Byte
• Ram Memory Size: 68Byte
• Cpu Speed: 20MHz
• No. Of Timers: 1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT20SS1-1 - SOCKET TRANSITION 20DIP 20SSOPI3-DB16F84A - BOARD DAUGHTER ICEPIC3AC164307 - MODULE SKT FOR PM3 28SSOPAC164018 - MODULE SKT PROMATEII 20SSOP
• Data Converters: -
• Connectivity: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

17.4.8
1997 Microchip Technology Inc.
Baud Rate Generator
In I
register
stops until another reload has taken place. In I
cally. If Clock Arbitration is taking place for instance, the BRG will be reloaded when the SCL pin
is sampled high
Figure 17-18: Baud Rate Generator Block Diagram
Figure 17-19: Baud Rate Generator Timing With Clock Arbitration
2
SDA
SCL
BRG
value
BRG
reload
C master mode, the reload value for the BRG is located in the lower 7 bits of the SSPADD
(Figure
SSPM3:SSPM0
17-18). When the BRG is loaded with this value, the BRG counts down to 0 and
(Figure
BRG counts
down
03h
SCL
17-19).
DX
SCL de-asserted but slave holds
SCL low (clock arbitration)
SSPM3:SSPM0
Preliminary
02h
SCL is sampled high, reload takes
place, and BRG starts its count.
BRG counts
down
Reload
Control
CLKOUT
01h
2
C master mode, the BRG is reloaded automati-
Reload
Section 17. MSSP
BRG counts
down
00h (hold off)
BRG Down Counter
DX-1
SSPADD<6:0>
SCL allowed to transition high
03h
DS31017A-page 17-31
Fosc/4
02h
17