PIC18F2331-E/SP Microchip Technology, PIC18F2331-E/SP Datasheet - Page 221
![IC MCU FLASH 4KX16 28-DIP](/photos/6/59/65908/150-28-dip_sml.jpg)
PIC18F2331-E/SP
Manufacturer Part Number
PIC18F2331-E/SP
Description
IC MCU FLASH 4KX16 28-DIP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F818-ISO.pdf
(6 pages)
3.PIC18F2331-ISO.pdf
(392 pages)
4.PIC18F2331-ISO.pdf
(8 pages)
5.PIC18F2331-ISO.pdf
(6 pages)
6.PIC18F2331-ISO.pdf
(16 pages)
7.PIC18F4331-EP.pdf
(400 pages)
Specifications of PIC18F2331-E/SP
Core Size
8-Bit
Program Memory Size
8KB (4K x 16)
Core Processor
PIC
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, Power Control PWM, QEI, POR, PWM, WDT
Number Of I /o
24
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 5x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
28-DIP (0.300", 7.62mm)
Controller Family/series
PIC18
No. Of I/o's
24
Eeprom Memory Size
256Byte
Ram Memory Size
768Byte
Cpu Speed
40MHz
No. Of Timers
4
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
I3-DB18F4431 - BOARD DAUGHTER ICEPIC3AC164035 - MODULE SKT FOR 18F2X31 28SOICDVA18XP280 - DEVICE ADAPTER 18F2220 PDIP 28LD
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
- PIC16F616T-ISL PDF datasheet
- PIC16F818-ISO PDF datasheet #2
- PIC18F2331-ISO PDF datasheet #3
- PIC18F2331-ISO PDF datasheet #4
- PIC18F2331-ISO PDF datasheet #5
- PIC18F2331-ISO PDF datasheet #6
- PIC18F4331-EP PDF datasheet #7
- Current page: 221 of 400
- Download datasheet (7Mb)
18.3
The SSP module, in I
functions except general call support and provides
interrupts on Start and Stop bits in hardware to facilitate
firmware implementations of the master functions. The
SSP
specifications, as well as 7-bit and 10-bit addressing.
Two pins are used for data transfer. These are the SCK/
SCL pin, which is the clock (SCL), and the SDI/SDA
pin, which is the data (SDA). The user must configure
these pins as inputs or outputs through the
TRISC<5:4> or TRISD<3:2> bits.
The SSP module functions are enabled by setting SSP
Enable bit SSPEN (SSPCON<5>).
FIGURE 18-5:
The SSP module has five registers for I
These are the:
• SSP Control Register (SSPCON)
• SSP Status Register (SSPSTAT)
• Serial Receive/Transmit Buffer (SSPBUF)
• SSP Shift Register (SSPSR) – Not directly
• SSP Address Register (SSPADD)
© 2007 Microchip Technology Inc.
SCK/SCL
SDI/SDA
Note 1: When SSPMX = 1 in CONFIG3H:
accessible
module
SSP I
(1)
(1)
SCK/SCL is multiplexed to pin RC5, SDA/SDI
is multiplexed to pin RC4 and SDO is
multiplexed to pin RC7.
When SSPMX = 0 in CONFIG3H:
SCK/SCL is multiplexed to pin RD3, SDA/SDI
is multiplexed to pin RD2 and SDO is
multiplexed to pin RD1.
Read
2
Clock
implements
Shift
C Operation
MSb
2
C mode, fully implements all slave
SSP BLOCK DIAGRAM
(I
Stop bit Detect
SSPADD Reg
SSPBUF Reg
Match Detect
SSPSR Reg
2
Start and
C™ MODE)
the
LSb
Write
standard
Internal
Data Bus
Set, Reset
S, P bits
(SSPSTAT Reg)
2
Addr Match
C operation.
PIC18F2331/2431/4331/4431
mode
Preliminary
The SSPCON register allows control of the I
tion. Four mode selection bits (SSPCON<3:0>) allow
one of the following I
• I
• I
• I
• I
• I
Selection of any I
forces the SCL and SDA pins to be open-drain,
provided these pins are programmed as inputs by
setting the appropriate TRISC or TRISD bits. Pull-up
resistors must be provided externally to the SCL and
SDA pins for proper operation of the I
Additional information on SSP I
found in the “PIC
Manual” (DS33023).
18.3.1
In Slave mode, the SCL and SDA pins must be config-
ured as inputs (TRISC<5:4> or TRISD<3:2> set). The
SSP module will override the input state with the output
data when required (slave-transmitter).
When an address is matched, or the data transfer after
an address match is received, the hardware automati-
cally will generate the Acknowledge (ACK) pulse and
then load the SSPBUF register with the received value
currently in the SSPSR register.
There are certain conditions that will cause the SSP
module not to give this ACK pulse. They include (either
or both):
a)
b)
In this case, the SSPSR register value is not loaded
into the SSPBUF, but bit SSPIF (PIR1<3>) is set.
Table 18-2 shows what happens when a data transfer
byte is received, given the status of bits BF and
SSPOV. The shaded cells show the condition where
user software did not properly clear the overflow
condition. Flag bit, BF, is cleared by reading the
SSPBUF register, while bit SSPOV is cleared through
software.
The SCL clock input must have a minimum high and
low for proper operation. The high and low times of the
I
SSP module, are shown in timing parameter 100 and
parameter 101.
2
C specification, as well as the requirements of the
Stop bit interrupts enabled to support Firmware
Controlled Master mode
Stop bit interrupts enabled to support Firmware
Controlled Master mode
support Firmware Controlled Master mode;
Slave is Idle
2
2
2
2
2
C Slave mode (7-bit address)
C Slave mode (10-bit address)
C Slave mode (7-bit address), with Start and
C Slave mode (10-bit address), with Start and
C Start and Stop bit interrupts enabled to
The Buffer Full bit, BF (SSPSTAT<0>), was set
before the transfer was received.
The SSP Overflow bit, SSPOV (SSPCON<6>),
was set before the transfer was received.
SLAVE MODE
®
2
Mid-Range MCU Family Reference
C mode, with the SSPEN bit set,
2
C modes to be selected:
2
C operation can be
DS39616C-page 219
2
C module.
2
C opera-
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