PIC16F677T-I/SS Microchip Technology, PIC16F677T-I/SS Datasheet - Page 156
![IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,SSOP,20PIN,PLASTIC](/photos/6/58/65895/150-20-ssop_sml.jpg)
PIC16F677T-I/SS
Manufacturer Part Number
PIC16F677T-I/SS
Description
IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,SSOP,20PIN,PLASTIC
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F690DM-PCTLHS.pdf
(306 pages)
3.PIC16F677-IP.pdf
(2 pages)
4.PIC16F677-IP.pdf
(16 pages)
Specifications of PIC16F677T-I/SS
Rohs Compliant
YES
Mfg Application Notes
Intro to Capacitive Sensing Appl Notes Layout and Physical Design Appl Note
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, WDT
Number Of I /o
18
Program Memory Size
3.5KB (2K x 14)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
20-SSOP
Processor Series
PIC16F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
128 B
Interface Type
SSP
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
18
Number Of Timers
2
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DM163014, DM164120-4
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 12 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
XLT20SS1-1 - SOCKET TRANSITION 20DIP 20SSOPDM164125 - BOARD DEMO PICDEM TOUCH SENSE 1AC162061 - HEADER INTRFC MPLAB ICD2 20PIN
Lead Free Status / Rohs Status
Details
- PIC16F616T-ISL PDF datasheet
- PIC16F690DM-PCTLHS PDF datasheet #2
- PIC16F677-IP PDF datasheet #3
- PIC16F677-IP PDF datasheet #4
- Current page: 156 of 306
- Download datasheet (6Mb)
PIC16F631/677/685/687/689/690
12.1.1.4
The TRMT bit of the TXSTA register indicates the
status of the TSR register. This is a read-only bit. The
TRMT bit is set when the TSR register is empty and is
cleared when a character is transferred to the TSR
register from the TXREG. The TRMT bit remains clear
until all bits have been shifted out of the TSR register.
No interrupt logic is tied to this bit, so the user has to
poll this bit to determine the TSR status.
12.1.1.5
The EUSART supports 9-bit character transmissions.
When the TX9 bit of the TXSTA register is set the
EUSART will shift 9 bits out for each character transmit-
ted. The TX9D bit of the TXSTA register is the ninth,
and Most Significant, data bit. When transmitting 9-bit
data, the TX9D data bit must be written before writing
the 8 Least Significant bits into the TXREG. All nine bits
of data will be transferred to the TSR shift register
immediately after the TXREG is written.
A special 9-bit Address mode is available for use with
multiple receivers. See Section 12.1.2.7 “Address
Detection” for more information on the Address mode.
FIGURE 12-3:
FIGURE 12-4:
DS41262E-page 154
Note:
Reg. Empty Flag)
Reg. Empty Flag)
Note:
Reg. Empty Flag)
Reg. Empty Flag)
Write to TXREG
(Transmit Buffer
Write to TXREG
(Transmit Buffer
(Transmit Shift
(Transmit Shift
BRG Output
(Shift Clock)
BRG Output
(Shift Clock)
TRMT bit
TRMT bit
TXIF bit
TXIF bit
The TSR register is not mapped in data
memory, so it is not available to the user.
TX/CK
TX/CK
This timing diagram shows two consecutive transmissions.
TSR Status
Transmitting 9-Bit Characters
pin
pin
ASYNCHRONOUS TRANSMISSION
ASYNCHRONOUS TRANSMISSION (BACK TO BACK)
1 T
Word 1
Transmit Shift Reg
CY
Word 1
Transmit Shift Reg
Word 1
Word 1
1 T
CY
Start bit
Start bit
Word 2
1 T
CY
bit 0
bit 0
bit 1
Word 1
bit 1
Word 1
12.1.1.6
1.
2.
3.
4.
5.
6.
7.
Initialize the SPBRGH, SPBRG register pair and
the BRGH and BRG16 bits to achieve the desired
baud rate (see Section 12.3 “EUSART Baud
Rate Generator (BRG)”).
Enable the asynchronous serial port by clearing
the SYNC bit and setting the SPEN bit.
If 9-bit transmission is desired, set the TX9 con-
trol bit. A set ninth data bit will indicate that the 8
Least Significant data bits are an address when
the receiver is set for address detection.
Enable the transmission by setting the TXEN
control bit. This will cause the TXIF interrupt bit
to be set.
If interrupts are desired, set the TXIE interrupt
enable bit of the PIE1 register. An interrupt will
occur immediately provided that the GIE and
PEIE bits of the INTCON register are also set.
If 9-bit transmission is selected, the ninth bit
should be loaded into the TX9D data bit.
Load 8-bit data into the TXREG register. This
will start the transmission.
Asynchronous Transmission Set-up:
bit 7/8
bit 7/8
Word 2
Transmit Shift Reg
© 2008 Microchip Technology Inc.
Stop bit
Stop bit
Start bit
Word 2
bit 0
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