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參數(shù)資料
| 型號： | PIC18LF47J13T-I/ML |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 8/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU 8BIT 128KB FLASH 44QFN |
| 標(biāo)準(zhǔn)包裝： | 1,600 |
| 系列： | PIC® XLP™ 18F |
| 核心處理器： | PIC |
| 芯體尺寸： | 8-位 |
| 速度： | 48MHz |
| 連通性： | I²C，LIN，SPI，UART/USART |
| 外圍設(shè)備： | 欠壓檢測/復(fù)位，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 34 |
| 程序存儲器容量： | 128KB（64K x 16） |
| 程序存儲器類型： | 閃存 |
| RAM 容量： | 3.8K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 2 V ~ 2.75 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 13x10b/12b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 44-VQFN 裸露焊盤 |
| 包裝： | 帶卷 (TR) |
PIC18F87K90 FAMILY
DS39957D-page 112
2009-2011 Microchip Technology Inc.
FIGURE 7-2:
TABLE WRITE OPERATION
7.2
Control Registers
Several control registers are used in conjunction with
the TBLRD and TBLWT instructions. These include the:
EECON1 register
EECON2 register
TABLAT register
TBLPTR registers
7.2.1
EECON1 AND EECON2 REGISTERS
The EECON1 register (Register 7-1) is the control
register for memory accesses. The EECON2 register,
not a physical register, is used exclusively in the
memory write and erase sequences. Reading
EECON2 will read all ‘0’s.
The EEPGD control bit determines if the access is a
program or data EEPROM memory access. When
clear, any subsequent operations operate on the data
EEPROM memory. When set, any subsequent
operations operate on the program memory.
The CFGS control bit determines if the access is to the
Configuration/Calibration registers or to program
memory/data
EEPROM
memory.
When
set,
subsequent operations operate on Configuration
registers regardless of EEPGD (see Section 28.0
). When clear, memory
selection access is determined by EEPGD.
The FREE bit, when set, allows a program memory
erase operation. When FREE is set, the erase
operation is initiated on the next WR command. When
FREE is clear, only writes are enabled.
The WREN bit, when set, allows a write operation. On
power-up, the WREN bit is clear. The WRERR bit is set
in hardware when the WR bit is set and cleared when
the internal programming timer expires and the write
operation is complete.
The WR control bit initiates write operations. The bit
cannot be cleared, only set, in software. It is cleared in
hardware at the completion of the write operation.
Table Pointer(1)
Table Latch (8-bit)
TBLPTRH TBLPTRL
TABLAT
Program Memory
(TBLPTR)
TBLPTRU
Instruction: TBLWT*
Note 1:
The Table Pointer actually points to one of 64 holding registers; the address of which is determined by
TBLPTRL<5:0>. The process for physically writing data to the program memory array is discussed in
.
Holding Registers
Program Memory
Note:
During normal operation, the WRERR is
read as ‘1’. This can indicate that a write
operation was prematurely terminated by
a Reset, or a write operation was
attempted improperly.
Note:
The EEIF interrupt flag bit (PIR6<4>) is
set when the write is complete. It must be
cleared in software.
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| PIC18LF47J53-I/ML | 功能描述:8位微控制器 -MCU 128KB Flash 4KB RAM 12MIPS nanoWatt 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(shí)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(fēng)格:SMD/SMT |
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