參數(shù)資料
型號: PIC18LF45J50-I/PT
廠商: Microchip Technology
文件頁數(shù): 20/32頁
文件大小: 0K
描述: IC PIC MCU FLASH 32K 2V 44-TQFP
產(chǎn)品培訓(xùn)模塊: XLP Deep Sleep Mode
8-bit PIC® Microcontroller Portfolio
標(biāo)準(zhǔn)包裝: 160
系列: PIC® XLP™ 18F
核心處理器: PIC
芯體尺寸: 8-位
速度: 48MHz
連通性: I²C,SPI,UART/USART,USB
外圍設(shè)備: 欠壓檢測/復(fù)位,DMA,POR,PWM,WDT
輸入/輸出數(shù): 34
程序存儲器容量: 32KB(16K 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 ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 13x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-TQFP
包裝: 托盤
產(chǎn)品目錄頁面: 657 (CN2011-ZH PDF)
2009 Microchip Technology Inc.
DS39687E-page 27
PIC18F2XJXX/4XJXX FAMILY
5.1
Device ID Word
The Device ID Word for the PIC18F2XJXX/4XJXX
family devices is located at 3FFFFEh:3FFFFFh. These
read-only bits may be used by the programmer to
identify what device type is being programmed and
read out normally, even after code protection has been
enabled. The process for reading the device IDs is
shown in Figure 5-1. A complete list of device ID values
for the PIC18F2XJXX/4XJXX family is presented in
FIGURE 5-1:
READ DEVICE ID WORD FLOW
5.2
Checksum Computation
The checksum is calculated by summing the contents of
all code memory locations and the device Configuration
Words, appropriately masked. The Least Significant
16 bits of this sum are the checksum.
The checksum calculation differs depending on
whether or not code protection is enabled. Since the
code memory locations read out differently depending
on the code-protect setting, the table describes how to
manipulate the actual code memory values to simulate
the values that would be read from a protected device.
When calculating a checksum by reading a device, the
entire code memory can simply be read and summed.
The Configuration Words can always be read.
TABLE 5-8: DEVICE ID VALUE
Device
Device ID Value
DEVID2
DEVID1
PIC18F24J10
1Dh
000x xxxx
PIC18F25J10
1Ch
000x xxxx
PIC18F44J10
1Dh
001x xxxx
PIC18F45J10
1Ch
001x xxxx
PIC18LF24J10
1Dh
010x xxxx
PIC18LF25J10
1Ch
010x xxxx
PIC18LF44J10
1Dh
011x xxxx
PIC18LF45J10
1Ch
011x xxxx
PIC18F25J11
4Dh
101x xxxx
PIC18F24J11
4Dh
100x xxxx
PIC18F26J11
4Dh
110x xxxx
PIC18F45J11
4Eh
000x xxxx
PIC18F44J11
4Dh
111x xxxx
PIC18F46J11
4Eh
001x xxxx
PIC18F24J50
4Ch
000x xxxx
PIC18F25J50
4Ch
001x xxxx
PIC18F26J50
4Ch
010x xxxx
PIC18F44J50
4Ch
011x xxxx
PIC18F45J50
4Ch
100x xxxx
Start
Set TBLPTR = 3FFFFE
Done
Read Low Byte
Read High Byte
with Post-Increment
PIC18F46J50
4Ch
101x xxxx
PIC18LF2450
4Ch
110x xxxx
PIC18LF25J50
4Ch
111x xxxx
PIC18LF26J50
4Dh
000x xxxx
PIC18LF44J50
4Dh
001x xxxx
PIC18LF45J50
4Dh
010x xxxx
PIC18LF46J50
4Dh
011x xxxx
PIC18LF24J11
4Eh
010x xxxx
PIC18LF25J11
4Eh
011x xxxx
PIC18LF26J11
4Eh
100x xxxx
PIC18LF44J11
4Eh
101x xxxx
PIC18LF45J11
4Eh
110x xxxx
PIC18LF46J11
4Eh
111x xxxx
PIC18F26J13
59h
001x xxxx
PIC18F27J13
59h
011x xxxx
PIC18F46J13
59h
101x xxxx
PIC18F47J13
59h
111x xxxx
PIC18LF26J13
5Bh
001x xxxx
PIC18LF27J13
5Bh
011x xxxx
PIC18LF46J13
5Bh
101x xxxx
PIC18LF47J13
5Bh
111x xxxx
PIC18F26J53
58h
001x xxxx
PIC18F27J53
58h
011x xxxx
PIC18F46J53
58h
101x xxxx
PIC18F47J53
58h
111x xxxx
PIC18LF26J53
5Ah
001x xxxx
PIC18LF27J53
5Ah
011x xxxx
PIC18LF46J53
5Ah
101x xxxx
PIC18LF47J53
5Ah
111x xxxx
TABLE 5-8: DEVICE ID VALUE (CONTINUED)
Device
Device ID Value
DEVID2
DEVID1
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