PIC18F46K80-I/P Microchip Technology Inc., PIC18F46K80-I/P Datasheet - Page 302
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PIC18F46K80-I/P
Manufacturer Part Number
PIC18F46K80-I/P
Description
40 PDIP .600IN TUBE, ECAN, 64KB FLASH, 4KB RAM, 16 MIPS, 12-BIT ADC, CTMU
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC18F46K80-IPT.pdf
(628 pages)
Specifications of PIC18F46K80-I/P
A/d Inputs
11-Channel, 12-Bit
Comparators
2
Cpu Speed
16 MIPS
Eeprom Memory
1K Bytes
Input Output
35
Interface
I2C/SPI/UART/USART
Memory Type
Flash
Number Of Bits
8
Package Type
44-pin PDIP
Programmable Memory
64K Bytes
Ram Size
3.6K Bytes
Speed
64 MHz
Temperature Range
–40 to 125 °C
Timers
2-8-bit, 3-16-bit
Voltage, Range
1.8-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
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PIC18F66K80 FAMILY
21.4
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) – RC3/REFO/SCL/SCK
• Serial Data (SDA) – RC4/SDA/SDI
The user must configure these pins as inputs by setting
the associated TRIS bits.
FIGURE 21-7:
DS39977C-page 302
Note:
SDA
SCL
I
Only port I/O names are used in this diagram for
the sake of brevity. Refer to the text for a full list of
multiplexed functions.
2
C Mode
Read
Shift
Clock
MSb
Address Mask
Stop bit Detect
Match Detect
SSPADD reg
SSPBUF reg
MSSP BLOCK DIAGRAM
(I
SSPSR reg
Start and
2
2
C mode fully implements all
C™ MODE)
LSb
Write
Addr Match
Set, Reset
S, P bits
(SSPSTAT reg)
Internal
Data Bus
Preliminary
21.4.1
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)
• I
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.
SSPADD contains the slave device address when the
MSSP is configured in I
MSSP is configured in Master mode, the lower seven
bits of SSPADD act as the Baud Rate Generator reload
value.
SSPMSK holds the slave address mask value when
the module is configured for 7-Bit Address Masking
mode. While it is a separate register, it shares the same
SFR address as SSPADD; it is only accessible when
the SSPM<3:0> bits are specifically set to permit
access.
Section 21.4.3.4 “7-Bit Address Masking Mode”
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
2
C Slave Address Mask Register (SSPMSK)
transmission,
Additional
REGISTERS
2011 Microchip Technology Inc.
details
2
C Slave mode. When the
the
2
C mode operation. The
SSPBUF
are
provided
is
.
not
2
in
C
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