PIC18F25K20-I/SO Microchip Technology, PIC18F25K20-I/SO Datasheet - Page 202

• Manufacturer Part Number: PIC18F25K20-I/SO
• Description: IC PIC MCU FLASH 16KX16 28SOIC
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of PIC18F25K20-I/SO

• Program Memory Type: FLASH
• Program Memory Size: 32KB (16K x 16)
• Package / Case: 28-SOIC (7.5mm Width)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 64MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 24
• Eeprom Size: 256 x 8
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 1.5 KB
• Interface Type: CCP/ECCP/EUSART/I2C/MSSP/SPI
• Maximum Clock Frequency: 64 MHz
• Number Of Programmable I/os: 25
• Number Of Timers: 4
• 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, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 11-ch x 10-bit
• Package: 28SOIC W
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 64 MHz
• Operating Supply Voltage: 2.5|3.3 V
• A/d Bit Size: 10 bit
• A/d Channels Available: 11
• Height: 2.31 mm
• Length: 17.87 mm
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 1.8 V
• Width: 7.49 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164112 - VOLTAGE LIMITER MPLAB ICD2 VPP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC18F2XK20/4XK20
17.4
The MSSP module in I
master and slave functions (including general call
support) and provides interrupts on Start and Stop bits
in hardware to determine a free bus (multi-master
function). The MSSP module implements the standard
mode specifications as well as 7-bit and 10-bit
addressing.
Two pins are used for data transfer:
• Serial clock (SCL) – SCK/SCL
• Serial data (SDA) – SDI/SDA
The user must configure these pins as inputs with the
corresponding TRIS bits.
FIGURE 17-7:
DS41303D-page 200
SDI/SDA
SCK/SCL
I
2
C Mode
Read
Shift
Clock
MSb
MSSP BLOCK DIAGRAM
(I
2
2
SSPMSK Reg
SSPADD Reg
Match Detect
C mode fully implements all
Stop bit Detect
C™ MODE)
SSPBUF Reg
SSPSR Reg
Start and
LSb
Write
(SSPSTAT Reg)
Internal
Data Bus
Addr Match
Set, Reset
S, P bits
Preliminary
17.4.1
The MSSP module has seven registers for I
operation. These are:
• MSSP Control Register 1 (SSPCON1)
• MSSP Control Register 2 (SSPCON2)
• MSSP STATUS register (SSPSTAT)
• Serial Receive/Transmit Buffer Register
• MSSP Shift Register (SSPSR) – Not directly
• MSSP Address Register (SSPADD)
• MSSP Address Mask (SSPMSK)
SSPCON1, SSPCON2 and SSPSTAT are the control
and STATUS registers in I
SSPCON1 and SSPCON2 registers are readable and
writable. The lower 6 bits of the SSPSTAT are read-only.
The upper two bits of the SSPSTAT are read/write.
SSPSR is the shift register used for shifting data in or
out. SSPBUF is the buffer register to which data bytes
are written to or read from.
When the SSP is configured in Master mode, the lower
seven bits of SSPADD act as the Baud Rate Generator
reload value. When the SSP is configured for I
mode the SSPADD register holds the slave device
address. The SSP can be configured to respond to a
range of addresses by qualifying selected bits of the
address register with the SSPMSK register.
In receive operations, SSPSR and SSPBUF together
create a double-buffered receiver. When SSPSR
receives a complete byte, it is transferred to SSPBUF
and the SSPIF interrupt is set.
During
double-buffered. A write to SSPBUF will write to both
SSPBUF and SSPSR.
(SSPBUF)
accessible
transmission,
REGISTERS
© 2008 Microchip Technology Inc.
the
2
C mode operation. The
SSPBUF
2
is
C slave
not
2
C