PIC16F77-I/LG Microchip Technology, PIC16F77-I/LG Datasheet - Page 285
PIC16F77-I/LG
Manufacturer Part Number
PIC16F77-I/LG
Description
IC MCU FLASH 8KX14 W/AD 44PLCC
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16F818-ISO.pdf
(6 pages)
4.PIC16F73-ISP.pdf
(174 pages)
5.PIC16F73-ISP.pdf
(14 pages)
6.PIC16F73-ISP.pdf
(12 pages)
Specifications of PIC16F77-I/LG
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
33
Program Memory Size
14KB (8K x 14)
Program Memory Type
FLASH
Ram Size
368 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x8b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-PLCC
For Use With
DVA16XL441 - ADAPTER DEVICE ICE 44PLCC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16F818-ISO PDF datasheet #3
- PIC16F73-ISP PDF datasheet #4
- PIC16F73-ISP PDF datasheet #5
- PIC16F73-ISP PDF datasheet #6
- Current page: 285 of 688
- Download datasheet (3Mb)
17.3
17.3.1
1997 Microchip Technology Inc.
Operation
SPI Mode
The SPI mode allows 8-bits of data to be synchronously transmitted and received simulta-
neously. All four modes of SPI are supported. To accomplish communication, typically three pins
are used:
• Serial Data Out (SDO)
• Serial Data In (SDI)
• Serial Clock (SCK)
Additionally a fourth pin may be used when in a slave mode of operation:
• Slave Select (SS)
When initializing the SPI, several options need to be specified. This is done by programming the
appropriate control bits in the SSPCON1 register (SSPCON1<5:0>) and SSPSTAT<7:6>. These
control bits allow the following to be specified:
• Master Mode (SCK is the clock output)
• Slave Mode (SCK is the clock input)
• Clock Polarity (Idle state of SCK)
• Data input sample phase (middle or end of data output time)
• Clock edge (output data on rising/falling edge of SCK)
• Clock Rate (Master mode only)
• Slave Select Mode (Slave mode only)
Figure 17-4
Figure 17-4:
shows the block diagram of the SSP module, when in SPI mode.
SSP Block Diagram (SPI Mode)
SDO
SCK
SDI
SS
Preliminary
Read
SS Control
Select
SMP:CKE
Edge
Enable
bit0
Select
Edge
SSPBUF reg
TRIS bit
Data to TX/RX in SSPSR
2
SSPM3:SSPM0
SSPSR reg
Clock Select
Section 17. MSSP
4
2
Write
Prescaler
4, 16, 64
clock
shift
TMR2 output
data bus
Internal
2
T
OSC
DS31017A-page 17-9
17
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