PIC18C452-E/PT Microchip Technology, PIC18C452-E/PT Datasheet - Page 151
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PIC18C452-E/PT
Manufacturer Part Number
PIC18C452-E/PT
Description
IC MCU OTP 16KX16 A/D 44TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Cr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16C770-ISO.pdf
(8 pages)
3.PIC18C242-ISO.pdf
(305 pages)
4.PIC18C242-ISO.pdf
(12 pages)
Specifications of PIC18C452-E/PT
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
33
Program Memory Size
32KB (16K x 16)
Program Memory Type
OTP
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Other names
PIC18C452E/PT
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18C452-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC16C770-ISO PDF datasheet #2
- PIC18C242-ISO PDF datasheet #3
- PIC18C242-ISO PDF datasheet #4
- Current page: 151 of 305
- Download datasheet (6Mb)
15.0
The Universal Synchronous Asynchronous Receiver
Transmitter (USART) module is one of the two serial
I/O modules. (USART is also known as a Serial Com-
munications Interface or SCI.) The USART can be con-
figured as a full duplex asynchronous system that can
communicate with peripheral devices, such as CRT ter-
minals and personal computers, or it can be configured
as a half-duplex synchronous system that can commu-
nicate with peripheral devices, such as A/D or D/A inte-
grated circuits, serial EEPROMs, etc.
REGISTER 15-1:
2001 Microchip Technology Inc.
ADDRESSABLE UNIVERSAL
SYNCHRONOUS
ASYNCHRONOUS RECEIVER
TRANSMITTER (USART)
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
TXSTA: TRANSMIT STATUS AND CONTROL REGISTER
bit 7
CSRC: Clock Source Select bit
Asynchronous mode:
Don’t care
Synchronous mode:
1 = Master mode (clock generated internally from BRG)
0 = Slave mode (clock from external source)
TX9: 9-bit Transmit Enable bit
1 = Selects 9-bit transmission
0 = Selects 8-bit transmission
TXEN: Transmit Enable bit
1 = Transmit enabled
0 = Transmit disabled
SYNC: USART Mode Select bit
1 = Synchronous mode
0 = Asynchronous mode
Unimplemented: Read as '0'
BRGH: High Baud Rate Select bit
Asynchronous mode:
1 = High speed
0 = Low speed
Synchronous mode:
Unused in this mode
TRMT: Transmit Shift Register Status bit
1 = TSR empty
0 = TSR full
TX9D: 9th bit of transmit data. Can be Address/Data bit or a parity bit.
Legend:
R = Readable bit
- n = Value at POR reset
R/W-0
CSRC
Note:
SREN/CREN overrides TXEN in SYNC mode.
R/W-0
TX9
R/W-0
TXEN
W = Writable bit
’1’ = Bit is set
R/W-0
SYNC
The USART can be configured in the following modes:
• Asynchronous (full duplex)
• Synchronous - Master (half duplex)
• Synchronous - Slave (half duplex)
In order to configure pins RC6/TX/CK and RC7/RX/DT
as the Universal Synchronous Asynchronous Receiver
Transmitter:
• bit SPEN (RCSTA<7>) must be set (= 1), and
• bits TRISC<7:6> must be cleared (= 0).
Register 15-1 shows the Transmit Status and Control
Register (TXSTA) and Register 15-2 shows the
Receive Status and Control Register (RCSTA).
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
U-0
—
BRGH
R/W-0
PIC18CXX2
x = Bit is unknown
TRMT
R-1
DS39026C-page 149
R/W-0
TX9D
bit 0
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