參數(shù)資料
型號： PIC16F819
廠商： Microchip Technology Inc.
英文描述： 18/20-Pin Enhanced FLASH Microcontrollers with nanoWatt Technology(18/20引腳，納瓦技術(shù)增強FLASH微控制器)
中文描述： 18/20-Pin增強型閃存微控制器采用納瓦技術(shù)（18/20引腳，納瓦技術(shù)增強閃存微控制器）
文件頁數(shù)： 76/164頁
文件大?。?/td> 3045K
代理商： PIC16F819
PIC16F818/819
DS39598C-page 74
Preliminary
2002 Microchip Technology Inc.
FIGURE 10-1:
SSP BLOCK DIAGRAM
(SPI MODE)
To enable the serial port, SSP enable bit SSPEN
(SSPCON<5>) must be set. To reset or reconfigure SPI
mode, clear bit SSPEN, re-initialize the SSPCON reg-
ister, and then set bit SSPEN. This configures the SDI,
SDO, SCK, and SS pins as serial port pins. For the pins
to behave as the serial port function, they must have
their data direction bits (in the TRISB register)
appropriately programmed. That is:
SDI must have TRISB<1> set
SDO must have TRISB<2> cleared
SCK (Master mode) must have TRISB<4> cleared
SCK (Slave mode) must have TRISB<4> set
SS must have TRISB<5> set
TABLE 10-1:
REGISTERS ASSOCIATED WITH SPI OPERATION
Read
Write
Internal
Data Bus
RB1/SDI/SDA
RB2/SDO/CCP1
RB5/SS
RB4/SCK/
SCL
SSPSR reg
SSPBUF reg
SSPM3:SSPM0
bit0
Shift
Clock
SS Control
Enable
Edge
Select
Clock Select
TMR2 Output
2
T
CY
Prescaler
4, 16, 64
TRISB<4>
Edge
Select
2
4
Note 1:
When the SPI is in Slave mode with SS pin
control enabled, (SSPCON<3:0> =
0100
)
the SPI module will reset if the SS pin is
set to V
DD
.
2:
If the SPI is used in Slave mode with
CKE = ‘1’, then the SS pin control must be
enabled.
3:
When the SPI is in Slave mode with SS pin
control enabled (SSPCON<3:0> =
0100
),
the state of SS pin can affect the state
read back from the TRISB<5> bit. The
Peripheral OE signal from the SSP mod-
ule into PORTB controls the state that is
read back from the TRISB<5> bit. If Read-
Modify-Write instructions, such as
BSF
are
performed on the TRISB register while the
SS pin is high, this will cause the
TRISB<5> bit to be set, thus disabling the
SDO output.
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on
POR, BOR
Value on
all other
RESETS
0Bh,8Bh
10Bh,18Bh
INTCON
GIE
PEIE
TMR0IE
INTE
RBIE
TMR0IF
INTF
RBIF
0000 000x 0000 000u
0Ch
PIR1
—
ADIF
—
—
SSPIF
CCP1IF TMR2IF
TMR1IF
-0-- 0000 -0-- 0000
8Ch
PIE1
—
ADIE
—
—
SSPIE
CCP1IE TMR2IE TMR1IE
-0-- 0000 -0-- 0000
86h
TRISB
PORTB Data Direction Register
1111 1111 1111 1111
13h
SSPBUF
Synchronous Serial Port Receive Buffer/Transmit Register
xxxx xxxx uuuu uuuu
14h
SSPCON
WCOL
SSPOV
SSPEN
CKP
SSPM3
SSPM2
SSPM1
SSPM0
0000 0000 0000 0000
94h
SSPSTAT
SMP
CKE
D/A
P
S
R/W
UA
BF
0000 0000 0000 0000
Legend:
x
= unknown,
u
= unchanged,
-
= unimplemented, read as ‘0’. Shaded cells are not used by the SSP in SPI mode.
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參數(shù)描述
PIC16F819-E/ML 功能描述:8位微控制器 -MCU 3.5KB 256 RAM 16 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
PIC16F819-E/P 功能描述:8位微控制器 -MCU 3.5KB 256 RAM 16 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
PIC16F819-E/SO 功能描述:8位微控制器 -MCU 3.5KB 256 RAM 16 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
PIC16F819-E/SS 功能描述:8位微控制器 -MCU 3.5KB 256 RAM 16 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
PIC16F819-E/SSVAO 制造商:Microchip Technology Inc 功能描述:
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